{
 "id": 4,
 "extent": {
  "xmin": 457000.00380000006,
  "ymin": 164999.99850000069,
  "xmax": 575999.99770000018,
  "ymax": 278999.9963000007,
  "spatialReference": {
   "wkid": 27700,
   "latestWkid": 27700,
   "xyTolerance": 0.001,
   "zTolerance": 0.001,
   "mTolerance": 0.001,
   "falseX": -5220400,
   "falseY": -15524400,
   "xyUnits": 10000,
   "falseZ": -100000,
   "zUnits": 10000,
   "falseM": -100000,
   "mUnits": 10000
  }
 }
}