{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Corrosion Zone",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "dcd2186756e0a65c55215afc9582b9d0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAhUlEQVQ4ja3UQQ7AIAgEwCXxvetb6ofpoQmpLZoW8Opm3IPQSCoKTwOAYwwIIPcLBdyHdrlOXmAFNjWswl5gBhNACGjbhf5gU8MqzMAqbAlGMAW0e2AUcxtmsQmswAyswqaGFdgLzGCfJiWyNJaTEt1A4Y/t5VwwsxttUjppF3wA3dM2uRNCX1JVzlFM1QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}