diff --git a/packages/interfaces/src/filter.ts b/packages/interfaces/src/filter.ts
index 67946a02a9..c5e2ab42ec 100644
--- a/packages/interfaces/src/filter.ts
+++ b/packages/interfaces/src/filter.ts
@@ -18,6 +18,11 @@ export type SubscribeOptions = {
   maxMissedMessagesThreshold?: number;
 };
 
+export type SubscriptionCallback<T extends IDecodedMessage> = {
+  decoders: IDecoder<T>[];
+  callback: Callback<T>;
+};
+
 export type IFilter = IReceiver & IBaseProtocolCore;
 
 export interface ISubscriptionSDK {