{
 "id": 4,
 "extent": {
  "xmin": -8490305.668766981,
  "ymin": 5688175.2754663881,
  "xmax": -6912256.7018172108,
  "ymax": 6500085.8248359291,
  "spatialReference": {
   "wkid": 102100,
   "latestWkid": 3857
  }
 }
}