{
 "id": 4,
 "extent": {
  "xmin": -8552961.1483358368,
  "ymin": 4597817.363567126,
  "xmax": -8504564.6970861591,
  "ymax": 4649531.1177246897,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857,
   "xyTolerance": 0.001,
   "zTolerance": 0.001,
   "mTolerance": 0.001,
   "falseX": -20037700,
   "falseY": -30241100,
   "xyUnits": 10000,
   "falseZ": -100000,
   "zUnits": 10000,
   "falseM": -100000,
   "mUnits": 10000
  }
 }
}