{
 "id": 7,
 "extent": {
  "xmin": -8529439.4342999998,
  "ymin": 4776913.2964000031,
  "xmax": -8527525.4104999993,
  "ymax": 4778711.4016000032,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857
  }
 }
}