fix: add event message id

Co-authored-by: Charalampos Mitrodimas <[email protected]>

internal/events/verify/subscription_verify.go

@@ -25,6 +25,7 @@ type VerifyParameters struct {
 	ForwardAddress    string
 	Secret            string
 	EventID           string
+	EventMessageID    string
 	Version           string
 	BroadcasterUserID string
 }