{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Radon Information Centers",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "166c5814322e3519991f81bd28a13455",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAiElEQVQ4jWNhoDJgGTWQYsAybAxsgNIHoJgiAxsC1EPqQYwbb67V33h7rRHJApINdNAQ1qr3VwsBc/zVGBg23lpTv+HmGgZchrIQNFBEi4ASCiPlxptrDPjCkYWA/gaQ90BhB3MpNAzJNhAEGm68vXbgxttrDmAengghxcsEk8vwyylEg8FvIABq1ylj9JR8awAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}