[03/06/2020 16:28:54] 503: mqtt session connection was closed (Unexpected disconnect)
{
client_id : "mqtt-board-panel-8b646950"
close_code : -1
event_code : 503
origin_id : 0
origin_type : 14
published : 0
received : 0
rejected : 0
timestamp : 1591176534.624651
token_id : 5621825
}
connect/disconnect every time .
