private void SendCommand(MessageBase message)
{
var raw = JsonSerializer.SerializeToUtf8Bytes(message, message.GetType());
var output = new byte[raw.Length + 1];
Array.Copy(raw, 0, output, 1, raw.Length);
output[0] = message.OpCode;
_client.SendAsync(output);
AddLog("Sent " + output.Length + " bytes for OpCode " + message.OpCode);
this._client.ReceiveAsync();
}