{
 "layers": [
  {
   "layerId": 3,
   "layerName": "Census2015_American_Community_Survey_2012_2016",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "7933430752118507e9406365adfaaa69",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMpLCzazsjE5MBABfD/378DLCDDQrM6OKhh4OppFQ4sDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhv///TsAKmmpYRjILACdARNY/AxhFQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Census2010_American_Community_Survey_2011_2015",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "3d05c3d474e525fdbc12d5fba8ec4f87",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMpLCzazsjE5MBABfD/378DLCDDkko6OKhh4LyeCgcWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw////h0AlbTUMAxkFgCcrxNB7XQCXAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Census2010",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "619f797a5190acf5e76ce44c6448725f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMpLCrczsjE5MBABfD/378DLCDDQjsyOKhh4OqKGQ4sDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhv///TsAKmmpYRjILACc6BNaKFtNOwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 0,
   "layerName": "Census2000",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "e7b7222133c84e54d992cf052147c88f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMpLCrczsTE6MBABfDv3/8DLCDDcjsiOKhh4OSKFQ4sDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhv/+/T8AKmmpYRjILACcphNSnzCK4AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}