@Override
 public String getDescription() {
   return "Event " + listenerSubscription.getType() + " unsubscription";
 }
  @Override
  public RequestAndResponseType createRequest(RomClientJsonRpcClient romClientJsonRpcClient) {

    return romClientJsonRpcClient.createUnsubscribeRequest(
        getObjectRef(kurentoObject), listenerSubscription.getSubscriptionId());
  }