{
 "id": 4,
 "extent": {
  "xmin": -16588299.46396816,
  "ymin": 9506642.7168467138,
  "xmax": -16501798.996119164,
  "ymax": 9546942.4598493818,
  "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
  }
 }
}