{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Railroad Bridges",
   "layerType": "Feature Layer",
   "minScale": 288896,
   "maxScale": 0,
   "legend": [
    {
     "label": "Bridge",
     "url": "8e077dc64a179f9378954149e27bf2cc",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 22,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}