Add bls_to_execution_change topic to eth1/v1/events (#5823)

* Add bls event

* Update events and types

* Add bls in event

* Event bls

* tests..rs

* change order

* another tests.rs

* Signed BLS

* Revert "another tests.rs"

This reverts commit 7f54e9c1ce.

* Revert "Signed BLS"

This reverts commit 1146bc734b.

* withdrawal_keyparis

* Fix genesis

common/eth2/src/types.rs

@@ -1082,6 +1082,7 @@ pub enum EventKind<E: EthSpec> {
     PayloadAttributes(VersionedSsePayloadAttributes),
     ProposerSlashing(Box<ProposerSlashing>),
     AttesterSlashing(Box<AttesterSlashing<E>>),
+    BlsToExecutionChange(Box<SignedBlsToExecutionChange>),
 }
 
 impl<E: EthSpec> EventKind<E> {
@@ -1103,6 +1104,7 @@ impl<E: EthSpec> EventKind<E> {
             EventKind::BlockReward(_) => "block_reward",
             EventKind::ProposerSlashing(_) => "proposer_slashing",
             EventKind::AttesterSlashing(_) => "attester_slashing",
+            EventKind::BlsToExecutionChange(_) => "bls_to_execution_change",
         }
     }
 
@@ -1193,6 +1195,11 @@ impl<E: EthSpec> EventKind<E> {
                     ServerError::InvalidServerSentEvent(format!("Proposer Slashing: {:?}", e))
                 })?,
             )),
+            "bls_to_execution_change" => Ok(EventKind::BlsToExecutionChange(
+                serde_json::from_str(data).map_err(|e| {
+                    ServerError::InvalidServerSentEvent(format!("Bls To Execution Change: {:?}", e))
+                })?,
+            )),
             _ => Err(ServerError::InvalidServerSentEvent(
                 "Could not parse event tag".to_string(),
             )),
@@ -1226,6 +1233,7 @@ pub enum EventTopic {
     BlockReward,
     AttesterSlashing,
     ProposerSlashing,
+    BlsToExecutionChange,
 }
 
 impl FromStr for EventTopic {
@@ -1249,6 +1257,7 @@ impl FromStr for EventTopic {
             "block_reward" => Ok(EventTopic::BlockReward),
             "attester_slashing" => Ok(EventTopic::AttesterSlashing),
             "proposer_slashing" => Ok(EventTopic::ProposerSlashing),
+            "bls_to_execution_change" => Ok(EventTopic::BlsToExecutionChange),
             _ => Err("event topic cannot be parsed.".to_string()),
         }
     }
@@ -1273,6 +1282,7 @@ impl fmt::Display for EventTopic {
             EventTopic::BlockReward => write!(f, "block_reward"),
             EventTopic::AttesterSlashing => write!(f, "attester_slashing"),
             EventTopic::ProposerSlashing => write!(f, "proposer_slashing"),
+            EventTopic::BlsToExecutionChange => write!(f, "bls_to_execution_change"),
         }
     }
 }