{
 "layers": [
  {
   "layerId": 0,
   "layerName": "National_Register_Historic_Districts",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "128aee68731a321ac57731d030ab6297",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA5ElEQVQ4ja2UPc7CMAxAXyUvzKxl5RBZ6HcAbtM9sPc2HICwcBLu8I1GIUTiJ4Y2xUObts9PsWpHVFF+GJJuLl72cA426jpoPVwsrgP8XbgMsPbgQtMMhvQcVHtgVeQ01ZmFhz30J9Cjav9nSZtm2CWpzckUeAwnU3fwjZOaskocDGVhrRRc/PtlYZ209eYO66TusW1i05abeqyUlJ+FrY9JMXmelFzyfwD9iVReJmW2VArwLKkYcLVUPsCTpIyclNHS10np7ufZQ8QythtY+NS01uGbOZ4mJT7cXjzHIS+M728cV6iVFvBiuVNEAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}