void SendGetSpotSubscriptionReq(uint?subscriptionId = 0) { if (!subscriptionId.HasValue) { return; } var _msg = outgoingMsgFactory.CreateGetSpotSubscriptionRequest(subscriptionId.Value, clientMsgId); #if TRACE_SUBSCRIPTIONS if (isDebugIsOn) { Debug.WriteLine("SendGetSpotSubscriptionReq() Message to be sent:\n{0}", OpenApiMessagesPresentation.ToString(_msg)); } #endif writeQueueSync.Enqueue(_msg.ToByteArray()); }