{
 "layers": [
  {
   "layerId": 3,
   "layerName": "MSA Aggregates",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "f5d6f9c75344e4f444f90bdbe1aa42ae",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1063,
   "layerName": "MSA Building Stone Chalk",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "11d35fcbc38031f9e2dd7b0431177204",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNpL+hv4WTgcWCgAvjO8OUAC8gwf+YUa2oYuPHvHAYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw+8MXw6ASlpqAJBZAFG8EIvVcAQaAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1062,
   "layerName": "MSA Industrial Minerals",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "509bb2d22592f798eb795b320f4940fa",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOpCe1sYf3B5cBABfCb49sBFpBhGpuDralh4A3ftQwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhr85vh0AlbTUACCzADZyEfUC4xzDAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}