{
 "id": 4,
 "extent": {
  "xmin": -8436795.4481000006,
  "ymin": 4643359.0969000002,
  "xmax": -8354147.8505999995,
  "ymax": 4842648.5144999996,
  "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
  }
 }
}