$args =
{
 message_type => MQTT_CONNECT,
 client_id => 'mosquitto_sub_10888',
}

10 21 00 06  4d 51 49 73    64 70 03 02  00 3c 00 13
6d 6f 73 71  75 69 74 74    6f 5f 73 75  62 5f 31 30
38 38 38

Connect/at-most-once MQIsdp/3/mosquitto_sub_10888 
