{
 "id": 4,
 "extent": {
  "xmin": -8509534.1263494883,
  "ymin": 5567881.6547443392,
  "xmax": -8412776.6274548154,
  "ymax": 5678329.7234680057,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857
  }
 }
}