diff --git a/signature/body.go b/signature/body.go
index 53b5d6b..4b43b84 100644
--- a/signature/body.go
+++ b/signature/body.go
@@ -84,6 +84,10 @@ func serviceMessageBody(req any) stableMarshaler {
 		return v.GetBody()
 	case *object.PutSingleResponse:
 		return v.GetBody()
+	case *object.PatchRequest:
+		return v.GetBody()
+	case *object.PatchResponse:
+		return v.GetBody()
 
 		/* Netmap */
 	case *netmap.LocalNodeInfoRequest: