diff --git a/crates/services/bls_aggregation/src/bls_agg.rs b/crates/services/bls_aggregation/src/bls_agg.rs
index bb8d7837..2c1bd90f 100644
--- a/crates/services/bls_aggregation/src/bls_agg.rs
+++ b/crates/services/bls_aggregation/src/bls_agg.rs
@@ -47,7 +47,6 @@ pub struct BlsAggregatorService {
     pub aggregated_response_receiver: UnboundedReceiver<BlsAggregationServiceResponse>,
     signed_task_response:
         Arc<RwLock<HashMap<TaskIndex, UnboundedSender<SignedTaskResponseDigest>>>>,
-
     avs_registry_service: AvsRegistryServiceChainCaller,
 }
 
@@ -61,7 +60,7 @@ impl BlsAggregatorService {
             avs_registry_service: avs_registry_service,
         }
     }
-
+    
     pub(crate) async fn write(
         &self,
     ) -> RwLockWriteGuard<'_, HashMap<TaskIndex, UnboundedSender<SignedTaskResponseDigest>>> {
diff --git a/crates/types/src/operator.rs b/crates/types/src/operator.rs
index b0086df4..01341295 100644
--- a/crates/types/src/operator.rs
+++ b/crates/types/src/operator.rs
@@ -1,4 +1,4 @@
-use alloy_primitives::{Address, U256};
+use alloy_primitives::{Address, FixedBytes, U256};
 use alloy_sol_types::sol;
 use eigensdk_crypto_bls::attestation::{
     G1Point as AttestationG1Point, G2Point as AttestationG2Point,
@@ -16,6 +16,8 @@ sol!(
 const MAX_NUMBER_OF_QUORUMS: usize = 192;
 use BLSApkRegistry::{G1Point, G2Point};
 
+pub type OperatorId = FixedBytes<32>;
+
 pub fn bitmap_to_quorum_ids(quorum_bitmaps: U256) -> Vec<u8> {
     let bytes = quorum_bitmaps.to_be_bytes::<32>();