{
 "webhook": {
   "id": 7,
   "name": "JSSShutdown Webhook",
   "webhookEvent": "JSSShutdown"
 },
 "event": {
   "institution": "MyCoolSchool",
   "hostAddress": "casper.mycoolschool.edu",
   "webApplicationPath": "/path/to/web/app",
   "isClusterMaster": true,
   "jssUrl": "https://casper.mycoolschool.edu:8443/"
 }
}