IC880A concentrator using Loraserver full image

Hi , i’m receiving while subscribing to MQTT like this ““time”:“2019-06-20T09:40:24Z”,“rxPacketsReceived”:28,“rxPacketsReceivedOK”:0,“txPacketsReceived”:0,“txPacketsEmitted”:0,“customData”:{“ip”:“10.3.6.66”}}”… How can i identify the data?