Update thing config through REST api

Setup, Configuration and Use Beginners
1

I’m getting 504 errors when trying to update a thing in paperui, and want to try the rest api instead. However I can’t understand how to write in the update thing config body. This is the current settings:

{
“statusInfo”: {
“status”: “ONLINE”,
“statusDetail”: “NONE”
},
“label”: “MySensors Ethernet Gateway”,
“configuration”: {
“tcpPort”: 5003,
“ipAddress”: “192.168.0.39”,
“enableNetworkSanCheck”: false,
“skipStartupCheck”: false,
“imperial”: false,
“sendDelay”: 100
},
“properties”: {},
“UID”: “mysensors:bridge-eth:d6dbb64f”,
“thingTypeUID”: “mysensors:bridge-eth”,
“channels”: []
},

ThingUID is of course mysensors:bridge-eth:d6dbb64f, but what do I write in body to change enableNetworkSanCheck to “true”?