{
 "id": 4,
 "extent": {
  "xmin": -8508535.4945,
  "ymin": 5614864.3942000018,
  "xmax": -8376345.8945000004,
  "ymax": 5719789.8342000023,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857
  }
 }
}