{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Bridge Deck",
   "layerType": "Feature Layer",
   "minScale": 500000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "dd81759c8f2cd13ccc2f70a5fe566b91",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAM0lEQVQ4jWP5P9/HgYGBwYGBOuAAC9SweioZyMBCLYNGDRw1cNTAUQNHDcQ08AAVzTsAAIb/BbqgLZ2TAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}