{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Visible Benchmarks",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "98783f62aed3a2588c9a47cf69883604",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+0lEQVQ4jdWUUQ6EIAxEh8R7iScDTiaerJtSqoCwrsafbYKigdehDEx4Oab/BxLgc3cGELhjgHgbSAJysEBqgrD8JiCYI9E1kIAVFhYuwzi4jwwOcBQxG2C5BCZlDFt7qXICbgssRfhWaQUkGep2NRpaMVWrimN6joGVAo1QTJGqVuOoUdkC3UlZmd/nvdaEx2YNFW6pfr+GwOZvQBlULss3Sz6nC0Mg14K40LGxi2ooYTymY++eDwP7rJrcK4LoCu2pOQGzypl9Vhm7VMawiNg7LVMnN0MXtkPyWbujoufe0duVJh3pk+u66X88vW3MUZ/h7XIL+CReB34A7xFLSj42TLAAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}