{
 "id": 4,
 "extent": {
  "xmin": -8159416.251037281,
  "ymin": 4956913.0140150432,
  "xmax": -8029820.831302098,
  "ymax": 5015574.6393026318,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857
  }
 }
}