{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Caltrans Signals",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "620e09bd3427f082aaa7b3234aa6b74f",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 24,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}