{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Air Monitor Sites",
   "layerType": "Feature Layer",
   "minScale": 10000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "4efa278937fdc8ac1e417594378f2da4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABFElEQVQ4jb2UsbGDMBBEN6CKS+wilKMKKOHH1wW4C2KXQAUoVxGQqI4/q48YENhg+4830aCZe9pD2ivwzyq+ClTVBkAJwC62ewC3tm3700D9A9Wl9/E7rdQoYp0xVlUxgZunQMKuIUTYJYTNYdz76TqC4YypCV5Ciz0YC46UwPeqWkFzh3ObZ1V6j6GqagBroKraawi7bR45LWlCtaHL4hN3uVlkLdtX3c0k73lB9vsP+1NgT9vv/MdRJNbnQJdF7LScMVxuK2B8mKr1q09nFMEgwvqNw3gK43QmKXvuNkC6ZIwYp0dZTpqyjEFkNSA2t5ygjBPbz8GTo9nZ4bRJUGaTcZxyms9Dl4OeAhdgFu8O0kf6BeE5lgKz8890AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}