{
 "id": 4,
 "extent": {
  "xmin": -8889411.3871999998,
  "ymin": 4818137.3174000001,
  "xmax": -8319353.7144999998,
  "ymax": 5151846.3398000002,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857
  }
 }
}