diff --git a/Cargo.lock b/Cargo.lock
index 4bf6c7cb0a..b98e096718 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,7 +79,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
 dependencies = [
  "crypto-common",
- "generic-array",
+ "generic-array 0.14.7",
 ]
 
 [[package]]
@@ -92,7 +92,7 @@ dependencies = [
  "cipher 0.3.0",
  "cpufeatures",
  "ctr 0.8.0",
- "opaque-debug",
+ "opaque-debug 0.3.1",
 ]
 
 [[package]]
@@ -674,6 +674,18 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "auto_impl"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7862e21c893d65a1650125d157eaeec691439379a1cee17ee49031b79236ada4"
+dependencies = [
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "auto_impl"
 version = "1.2.1"
@@ -724,6 +736,28 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
+[[package]]
+name = "base58"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5024ee8015f02155eee35c711107ddd9a9bf3cb689cf2a9089c97e79b6e1ae83"
+
+[[package]]
+name = "base58check"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ee2fe4c9a0c84515f136aaae2466744a721af6d63339c18689d9e995d74d99b"
+dependencies = [
+ "base58",
+ "sha2 0.8.2",
+]
+
+[[package]]
+name = "base64"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
+
 [[package]]
 name = "base64"
 version = "0.13.1"
@@ -880,6 +914,12 @@ dependencies = [
  "types",
 ]
 
+[[package]]
+name = "bech32"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dabbe35f96fb9507f7330793dc490461b2962659ac5d427181e451a623751d1"
+
 [[package]]
 name = "bincode"
 version = "1.3.3"
@@ -939,6 +979,16 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
 
+[[package]]
+name = "bitvec"
+version = "0.17.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41262f11d771fd4a61aa3ce019fca363b4b6c282fca9da2a31186d3965a47a5c"
+dependencies = [
+ "either",
+ "radium 0.3.0",
+]
+
 [[package]]
 name = "bitvec"
 version = "0.20.4"
@@ -972,14 +1022,26 @@ dependencies = [
  "digest 0.10.7",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
+dependencies = [
+ "block-padding 0.1.5",
+ "byte-tools",
+ "byteorder",
+ "generic-array 0.12.4",
+]
+
 [[package]]
 name = "block-buffer"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
 dependencies = [
- "block-padding",
- "generic-array",
+ "block-padding 0.2.1",
+ "generic-array 0.14.7",
 ]
 
 [[package]]
@@ -988,7 +1050,16 @@ version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
+]
+
+[[package]]
+name = "block-padding"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
+dependencies = [
+ "byte-tools",
 ]
 
 [[package]]
@@ -1105,6 +1176,12 @@ version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7575182f7272186991736b70173b0ea045398f984bf5ebbb3804736ce1330c9d"
 
+[[package]]
+name = "byte-tools"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
+
 [[package]]
 name = "byteorder"
 version = "1.5.0"
@@ -1310,7 +1387,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ee52072ec15386f770805afd189a01c8841be8696bed250fa2f13c4c0d6dfb7"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
 ]
 
 [[package]]
@@ -1445,6 +1522,63 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "coins-bip32"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "634c509653de24b439672164bbf56f5f582a2ab0e313d3b0f6af0b7345cf2560"
+dependencies = [
+ "bincode",
+ "bs58 0.4.0",
+ "coins-core",
+ "digest 0.10.7",
+ "getrandom 0.2.15",
+ "hmac 0.12.1",
+ "k256 0.11.6",
+ "lazy_static",
+ "serde",
+ "sha2 0.10.8",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "coins-bip39"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a11892bcac83b4c6e95ab84b5b06c76d9d70ad73548dd07418269c5c7977171"
+dependencies = [
+ "bitvec 0.17.4",
+ "coins-bip32",
+ "getrandom 0.2.15",
+ "hex",
+ "hmac 0.12.1",
+ "pbkdf2 0.11.0",
+ "rand 0.8.5",
+ "sha2 0.10.8",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "coins-core"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c94090a6663f224feae66ab01e41a2555a8296ee07b5f20dab8888bdefc9f617"
+dependencies = [
+ "base58check",
+ "base64 0.12.3",
+ "bech32",
+ "blake2",
+ "digest 0.10.7",
+ "generic-array 0.14.7",
+ "hex",
+ "ripemd",
+ "serde",
+ "serde_derive",
+ "sha2 0.10.8",
+ "sha3 0.10.8",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "colorchoice"
 version = "1.0.3"
@@ -1536,6 +1670,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
+[[package]]
+name = "convert_case"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -1713,7 +1856,7 @@ version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef2b4b23cddf68b89b8f8069890e8c270d54e2d5fe1b143820234805e4cb17ef"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
  "rand_core 0.6.4",
  "subtle",
  "zeroize",
@@ -1725,7 +1868,7 @@ version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0dc92fb57ca44df6db8059111ab3af99a63d5d0f8375d9972e319a379c6bab76"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
  "rand_core 0.6.4",
  "subtle",
  "zeroize",
@@ -1737,7 +1880,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
  "rand_core 0.6.4",
  "typenum",
 ]
@@ -1748,7 +1891,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b584a330336237c1eecd3e94266efb216c56ed91225d634cb2991c5f3fd1aeab"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
  "subtle",
 ]
 
@@ -1758,7 +1901,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25fab6889090c8133f3deb8f73ba3c65a7f456f66436fc012a1b1e272b1e103e"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
  "subtle",
 ]
 
@@ -2053,7 +2196,7 @@ version = "0.99.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3da29a38df43d6f156149c9b43ded5e018ddff2a855cf2cfd62e8cd7d079c69f"
 dependencies = [
- "convert_case",
+ "convert_case 0.4.0",
  "proc-macro2",
  "quote",
  "rustc_version 0.4.1",
@@ -2101,13 +2244,22 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "digest"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
+dependencies = [
+ "generic-array 0.12.4",
+]
+
 [[package]]
 name = "digest"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
 ]
 
 [[package]]
@@ -2336,8 +2488,9 @@ dependencies = [
  "der 0.6.1",
  "digest 0.10.7",
  "ff 0.12.1",
- "generic-array",
+ "generic-array 0.14.7",
  "group 0.12.1",
+ "pkcs8 0.9.0",
  "rand_core 0.6.4",
  "sec1 0.3.0",
  "subtle",
@@ -2354,7 +2507,7 @@ dependencies = [
  "crypto-bigint 0.5.5",
  "digest 0.10.7",
  "ff 0.13.1",
- "generic-array",
+ "generic-array 0.14.7",
  "group 0.13.0",
  "pem-rfc7468",
  "pkcs8 0.10.2",
@@ -2485,6 +2638,28 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "eth-keystore"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fda3bf123be441da5260717e0661c25a2fd9cb2b2c1d20bf2e05580047158ab"
+dependencies = [
+ "aes 0.8.4",
+ "ctr 0.9.2",
+ "digest 0.10.7",
+ "hex",
+ "hmac 0.12.1",
+ "pbkdf2 0.11.0",
+ "rand 0.8.5",
+ "scrypt 0.10.0",
+ "serde",
+ "serde_json",
+ "sha2 0.10.8",
+ "sha3 0.10.8",
+ "thiserror 1.0.69",
+ "uuid 0.8.2",
+]
+
 [[package]]
 name = "eth1"
 version = "0.2.0"
@@ -2603,7 +2778,7 @@ dependencies = [
  "hmac 0.11.0",
  "pbkdf2 0.8.0",
  "rand 0.8.5",
- "scrypt",
+ "scrypt 0.7.0",
  "serde",
  "serde_json",
  "serde_repr",
@@ -2872,13 +3047,15 @@ dependencies = [
  "bytes",
  "cargo_metadata 0.15.4",
  "chrono",
+ "convert_case 0.6.0",
  "elliptic-curve 0.12.3",
  "ethabi 18.0.0",
- "generic-array",
+ "generic-array 0.14.7",
  "hex",
  "k256 0.11.6",
  "once_cell",
  "open-fastrlp",
+ "proc-macro2",
  "rand 0.8.5",
  "rlp",
  "rlp-derive",
@@ -2891,6 +3068,49 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "ethers-etherscan"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9713f525348e5dde025d09b0a4217429f8074e8ff22c886263cc191e87d8216"
+dependencies = [
+ "ethers-core",
+ "getrandom 0.2.15",
+ "reqwest",
+ "semver 1.0.26",
+ "serde",
+ "serde-aux",
+ "serde_json",
+ "thiserror 1.0.69",
+ "tracing",
+]
+
+[[package]]
+name = "ethers-middleware"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e71df7391b0a9a51208ffb5c7f2d068900e99d6b3128d3a4849d138f194778b7"
+dependencies = [
+ "async-trait",
+ "auto_impl 0.5.0",
+ "ethers-contract",
+ "ethers-core",
+ "ethers-etherscan",
+ "ethers-providers",
+ "ethers-signers",
+ "futures-locks",
+ "futures-util",
+ "instant",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "thiserror 1.0.69",
+ "tokio",
+ "tracing",
+ "tracing-futures",
+ "url",
+]
+
 [[package]]
 name = "ethers-providers"
 version = "1.0.2"
@@ -2898,7 +3118,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1a9e0597aa6b2fdc810ff58bc95e4eeaa2c219b3e615ed025106ecb027407d8"
 dependencies = [
  "async-trait",
- "auto_impl",
+ "auto_impl 1.2.1",
  "base64 0.13.1",
  "ethers-core",
  "futures-core",
@@ -2926,6 +3146,24 @@ dependencies = [
  "ws_stream_wasm",
 ]
 
+[[package]]
+name = "ethers-signers"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f41ced186867f64773db2e55ffdd92959e094072a1d09a5e5e831d443204f98"
+dependencies = [
+ "async-trait",
+ "coins-bip32",
+ "coins-bip39",
+ "elliptic-curve 0.12.3",
+ "eth-keystore",
+ "ethers-core",
+ "hex",
+ "rand 0.8.5",
+ "sha2 0.10.8",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "event-listener"
 version = "2.5.3"
@@ -2971,7 +3209,9 @@ dependencies = [
  "async-channel 1.9.0",
  "deposit_contract",
  "ethers-core",
+ "ethers-middleware",
  "ethers-providers",
+ "ethers-signers",
  "execution_layer",
  "fork_choice",
  "futures",
@@ -3049,6 +3289,12 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "fake-simd"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
+
 [[package]]
 name = "fallible-iterator"
 version = "0.2.0"
@@ -3074,7 +3320,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "139834ddba373bbdd213dffe02c8d110508dcf1726c2be27e8d1f7d7e1856418"
 dependencies = [
  "arrayvec",
- "auto_impl",
+ "auto_impl 1.2.1",
  "bytes",
 ]
 
@@ -3085,7 +3331,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce8dba4714ef14b8274c371879b175aa55b16b30f269663f19d576f380018dc4"
 dependencies = [
  "arrayvec",
- "auto_impl",
+ "auto_impl 1.2.1",
  "bytes",
 ]
 
@@ -3337,6 +3583,16 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "futures-locks"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45ec6fe3675af967e67c5536c0b9d44e34e6c52f86bedc4ea49c5317b8e94d06"
+dependencies = [
+ "futures-channel",
+ "futures-task",
+]
+
 [[package]]
 name = "futures-macro"
 version = "0.3.31"
@@ -3417,6 +3673,15 @@ dependencies = [
  "windows 0.58.0",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffdf9f34f1447443d37393cc6c2b8313aebddcd96906caf34e54c68d8e57d7bd"
+dependencies = [
+ "typenum",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -3481,7 +3746,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0d8a4362ccb29cb0b265253fb0a2728f592895ee6854fd9bc13f2ffda266ff1"
 dependencies = [
- "opaque-debug",
+ "opaque-debug 0.3.1",
  "polyval",
 ]
 
@@ -3851,7 +4116,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "17ea0a1394df5b6574da6e0c1ade9e78868c9fb0a4e5ef4428e32da4676b85b1"
 dependencies = [
  "digest 0.9.0",
- "generic-array",
+ "generic-array 0.14.7",
  "hmac 0.8.1",
 ]
 
@@ -4469,7 +4734,7 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "879f10e63c20629ecabbb64a8010319738c66a5cd0c29b02d63d272b03751d01"
 dependencies = [
- "generic-array",
+ "generic-array 0.14.7",
 ]
 
 [[package]]
@@ -6186,6 +6451,12 @@ version = "11.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6790f58c7ff633d8771f42965289203411a5e5c68388703c06e14f24770b41e"
 
+[[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
+
 [[package]]
 name = "opaque-debug"
 version = "0.3.1"
@@ -6199,7 +6470,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "786393f80485445794f6043fd3138854dd109cc6c4bd1a6383db304c9ce9b9ce"
 dependencies = [
  "arrayvec",
- "auto_impl",
+ "auto_impl 1.2.1",
  "bytes",
  "ethereum-types 0.14.1",
  "open-fastrlp-derive",
@@ -6293,6 +6564,15 @@ dependencies = [
  "types",
 ]
 
+[[package]]
+name = "ordered-float"
+version = "2.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68f19d67e5a2795c94e73e0bb1cc1a7edeb2e28efd39e2e1c9b7a40c1108b11c"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "overload"
 version = "0.1.1"
@@ -6626,7 +6906,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8159bd90725d2df49889a078b54f4f79e87f1f8a8444194cdca81d38f5393abf"
 dependencies = [
  "cpufeatures",
- "opaque-debug",
+ "opaque-debug 0.3.1",
  "universal-hash",
 ]
 
@@ -6638,7 +6918,7 @@ checksum = "9d1fe60d06143b2430aa532c94cfe9e29783047f06c0d7fd359a9a51b729fa25"
 dependencies = [
  "cfg-if",
  "cpufeatures",
- "opaque-debug",
+ "opaque-debug 0.3.1",
  "universal-hash",
 ]
 
@@ -6736,6 +7016,30 @@ dependencies = [
  "toml_edit 0.22.24",
 ]
 
+[[package]]
+name = "proc-macro-error"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.94"
@@ -6992,6 +7296,12 @@ dependencies = [
  "rusqlite",
 ]
 
+[[package]]
+name = "radium"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "def50a86306165861203e7f84ecffbbdfdea79f0e51039b33de1e952358c47ac"
+
 [[package]]
 name = "radium"
 version = "0.6.2"
@@ -7296,6 +7606,15 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "ripemd"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd124222d17ad93a644ed9d011a40f4fb64aa54275c08cc216524a9ea82fb09f"
+dependencies = [
+ "digest 0.10.7",
+]
+
 [[package]]
 name = "rlp"
 version = "0.5.2"
@@ -7642,6 +7961,15 @@ dependencies = [
  "cipher 0.3.0",
 ]
 
+[[package]]
+name = "salsa20"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97a22f5af31f73a954c10289c93e8a50cc23d971e80ee446f1f6f7137a088213"
+dependencies = [
+ "cipher 0.4.4",
+]
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -7713,10 +8041,22 @@ checksum = "879588d8f90906e73302547e20fffefdd240eb3e0e744e142321f5d49dea0518"
 dependencies = [
  "hmac 0.11.0",
  "pbkdf2 0.8.0",
- "salsa20",
+ "salsa20 0.8.1",
  "sha2 0.9.9",
 ]
 
+[[package]]
+name = "scrypt"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f9e24d2b632954ded8ab2ef9fea0a0c769ea56ea98bddbafbad22caeeadf45d"
+dependencies = [
+ "hmac 0.12.1",
+ "pbkdf2 0.11.0",
+ "salsa20 0.10.2",
+ "sha2 0.10.8",
+]
+
 [[package]]
 name = "sct"
 version = "0.7.1"
@@ -7735,7 +8075,7 @@ checksum = "3be24c1842290c45df0a7bf069e0c268a747ad05a192f2fd7dcfdbc1cba40928"
 dependencies = [
  "base16ct 0.1.1",
  "der 0.6.1",
- "generic-array",
+ "generic-array 0.14.7",
  "pkcs8 0.9.0",
  "subtle",
  "zeroize",
@@ -7749,7 +8089,7 @@ checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
 dependencies = [
  "base16ct 0.2.0",
  "der 0.7.9",
- "generic-array",
+ "generic-array 0.14.7",
  "pkcs8 0.10.2",
  "subtle",
  "zeroize",
@@ -7828,6 +8168,27 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-aux"
+version = "4.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5290c39c5f6992b9dddbda28541d965dba46468294e6018a408fa297e6c602de"
+dependencies = [
+ "serde",
+ "serde-value",
+ "serde_json",
+]
+
+[[package]]
+name = "serde-value"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
+dependencies = [
+ "ordered-float",
+ "serde",
+]
+
 [[package]]
 name = "serde_array_query"
 version = "0.1.0"
@@ -7908,6 +8269,18 @@ dependencies = [
  "digest 0.10.7",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
+dependencies = [
+ "block-buffer 0.7.3",
+ "digest 0.8.1",
+ "fake-simd",
+ "opaque-debug 0.2.3",
+]
+
 [[package]]
 name = "sha2"
 version = "0.9.9"
@@ -7918,7 +8291,7 @@ dependencies = [
  "cfg-if",
  "cpufeatures",
  "digest 0.9.0",
- "opaque-debug",
+ "opaque-debug 0.3.1",
 ]
 
 [[package]]
@@ -7941,7 +8314,7 @@ dependencies = [
  "block-buffer 0.9.0",
  "digest 0.9.0",
  "keccak",
- "opaque-debug",
+ "opaque-debug 0.3.1",
 ]
 
 [[package]]
@@ -9170,6 +9543,12 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.6"
diff --git a/Cargo.toml b/Cargo.toml
index de5d6b541e..31f50068dc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -141,6 +141,8 @@ ethereum_ssz = "0.8.2"
 ethereum_ssz_derive = "0.8.2"
 ethers-core = "1"
 ethers-providers = { version = "1", default-features = false }
+ethers-signers = { version = "1", default-features = false }
+ethers-middleware = { version = "1", default-features = false }
 exit-future = "0.2"
 fnv = "1"
 fs2 = "0.4"
diff --git a/testing/execution_engine_integration/Cargo.toml b/testing/execution_engine_integration/Cargo.toml
index 28ff944799..55c42eb9d3 100644
--- a/testing/execution_engine_integration/Cargo.toml
+++ b/testing/execution_engine_integration/Cargo.toml
@@ -7,7 +7,9 @@ edition = { workspace = true }
 async-channel = { workspace = true }
 deposit_contract = { workspace = true }
 ethers-core = { workspace = true }
+ethers-middleware = { workspace = true }
 ethers-providers = { workspace = true }
+ethers-signers = { workspace = true }
 execution_layer = { workspace = true }
 fork_choice = { workspace = true }
 futures = { workspace = true }
diff --git a/testing/execution_engine_integration/src/geth.rs b/testing/execution_engine_integration/src/geth.rs
index ea143ed433..8c39fda4e3 100644
--- a/testing/execution_engine_integration/src/geth.rs
+++ b/testing/execution_engine_integration/src/geth.rs
@@ -7,10 +7,7 @@ use std::{env, fs};
 use tempfile::TempDir;
 use unused_port::unused_tcp4_port;
 
-// This is not currently used due to the following breaking changes in geth that requires updating our tests:
-// 1. removal of `personal` namespace in v1.14.12: See #30704
-// 2. removal of `totalDifficulty` field from RPC in v1.14.11. See #30386.
-// const GETH_BRANCH: &str = "master";
+const GETH_BRANCH: &str = "master";
 const GETH_REPO_URL: &str = "https://github.com/ethereum/go-ethereum";
 
 pub fn build_result(repo_dir: &Path) -> Output {
@@ -30,14 +27,12 @@ pub fn build(execution_clients_dir: &Path) {
     }
 
     // Get the latest tag on the branch
-    // let last_release = build_utils::get_latest_release(&repo_dir, GETH_BRANCH).unwrap();
-    // Using an older release due to breaking changes in recent releases. See comment on `GETH_BRANCH` const.
-    let release_tag = "v1.14.10";
-    build_utils::checkout(&repo_dir, dbg!(release_tag)).unwrap();
+    let last_release = build_utils::get_latest_release(&repo_dir, GETH_BRANCH).unwrap();
+    build_utils::checkout(&repo_dir, dbg!(&last_release)).unwrap();
 
     // Build geth
     build_utils::check_command_output(build_result(&repo_dir), || {
-        format!("geth make failed using release {release_tag}")
+        format!("geth make failed using release {last_release}")
     });
 }
 
@@ -102,7 +97,7 @@ impl GenericExecutionEngine for GethEngine {
             .arg(datadir.path().to_str().unwrap())
             .arg("--http")
             .arg("--http.api")
-            .arg("engine,eth,personal")
+            .arg("engine,eth")
             .arg("--http.port")
             .arg(http_port.to_string())
             .arg("--authrpc.port")
diff --git a/testing/execution_engine_integration/src/main.rs b/testing/execution_engine_integration/src/main.rs
index efb06833f6..d453c415d4 100644
--- a/testing/execution_engine_integration/src/main.rs
+++ b/testing/execution_engine_integration/src/main.rs
@@ -32,12 +32,12 @@ fn main() {
 fn test_geth() {
     let test_dir = build_utils::prepare_dir();
     geth::build(&test_dir);
-    TestRig::new(GethEngine).perform_tests_blocking();
+    TestRig::new(GethEngine, true).perform_tests_blocking();
     geth::clean(&test_dir);
 }
 
 fn test_nethermind() {
     let test_dir = build_utils::prepare_dir();
     nethermind::build(&test_dir);
-    TestRig::new(NethermindEngine).perform_tests_blocking();
+    TestRig::new(NethermindEngine, false).perform_tests_blocking();
 }
diff --git a/testing/execution_engine_integration/src/test_rig.rs b/testing/execution_engine_integration/src/test_rig.rs
index cf31c184fe..b0d115960c 100644
--- a/testing/execution_engine_integration/src/test_rig.rs
+++ b/testing/execution_engine_integration/src/test_rig.rs
@@ -2,7 +2,9 @@ use crate::execution_engine::{
     ExecutionEngine, GenericExecutionEngine, ACCOUNT1, ACCOUNT2, KEYSTORE_PASSWORD, PRIVATE_KEYS,
 };
 use crate::transactions::transactions;
+use ethers_middleware::SignerMiddleware;
 use ethers_providers::Middleware;
+use ethers_signers::LocalWallet;
 use execution_layer::test_utils::DEFAULT_GAS_LIMIT;
 use execution_layer::{
     BlockProposalContentsType, BuilderParams, ChainHealth, ExecutionLayer, PayloadAttributes,
@@ -44,6 +46,7 @@ pub struct TestRig<Engine, E: EthSpec = MainnetEthSpec> {
     ee_b: ExecutionPair<Engine, E>,
     spec: ChainSpec,
     _runtime_shutdown: async_channel::Sender<()>,
+    use_local_signing: bool,
 }
 
 /// Import a private key into the execution engine and unlock it so that we can
@@ -104,7 +107,7 @@ async fn import_and_unlock(http_url: SensitiveUrl, priv_keys: &[&str], password:
 }
 
 impl<Engine: GenericExecutionEngine> TestRig<Engine> {
-    pub fn new(generic_engine: Engine) -> Self {
+    pub fn new(generic_engine: Engine, use_local_signing: bool) -> Self {
         let runtime = Arc::new(
             tokio::runtime::Builder::new_multi_thread()
                 .enable_all()
@@ -166,6 +169,7 @@ impl<Engine: GenericExecutionEngine> TestRig<Engine> {
             ee_b,
             spec,
             _runtime_shutdown: runtime_shutdown,
+            use_local_signing,
         }
     }
 
@@ -197,15 +201,9 @@ impl<Engine: GenericExecutionEngine> TestRig<Engine> {
     pub async fn perform_tests(&self) {
         self.wait_until_synced().await;
 
-        // Import and unlock all private keys to sign transactions
-        let _ = futures::future::join_all([&self.ee_a, &self.ee_b].iter().map(|ee| {
-            import_and_unlock(
-                ee.execution_engine.http_url(),
-                &PRIVATE_KEYS,
-                KEYSTORE_PASSWORD,
-            )
-        }))
-        .await;
+        // Create a local signer in case we need to sign transactions locally
+        let wallet1: LocalWallet = PRIVATE_KEYS[0].parse().expect("Invalid private key");
+        let signer = SignerMiddleware::new(&self.ee_a.execution_engine.provider, wallet1);
 
         // We hardcode the accounts here since some EEs start with a default unlocked account
         let account1 = ethers_core::types::Address::from_slice(&hex::decode(ACCOUNT1).unwrap());
@@ -236,15 +234,38 @@ impl<Engine: GenericExecutionEngine> TestRig<Engine> {
         // Submit transactions before getting payload
         let txs = transactions::<MainnetEthSpec>(account1, account2);
         let mut pending_txs = Vec::new();
-        for tx in txs.clone().into_iter() {
-            let pending_tx = self
-                .ee_a
-                .execution_engine
-                .provider
-                .send_transaction(tx, None)
-                .await
-                .unwrap();
-            pending_txs.push(pending_tx);
+
+        if self.use_local_signing {
+            // Sign locally with the Signer middleware
+            for (i, tx) in txs.clone().into_iter().enumerate() {
+                // The local signer uses eth_sendRawTransaction, so we need to manually set the nonce
+                let mut tx = tx.clone();
+                tx.set_nonce(i as u64);
+                let pending_tx = signer.send_transaction(tx, None).await.unwrap();
+                pending_txs.push(pending_tx);
+            }
+        } else {
+            // Sign on the EE
+            // Import and unlock all private keys to sign transactions on the EE
+            let _ = futures::future::join_all([&self.ee_a, &self.ee_b].iter().map(|ee| {
+                import_and_unlock(
+                    ee.execution_engine.http_url(),
+                    &PRIVATE_KEYS,
+                    KEYSTORE_PASSWORD,
+                )
+            }))
+            .await;
+
+            for tx in txs.clone().into_iter() {
+                let pending_tx = self
+                    .ee_a
+                    .execution_engine
+                    .provider
+                    .send_transaction(tx, None)
+                    .await
+                    .unwrap();
+                pending_txs.push(pending_tx);
+            }
         }
 
         /*