{
 "layers": [
  {
   "layerId": 0,
   "layerName": "nph_survey",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "3a002e2f545c88c25b34c7b31c502047",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAjElEQVQ4jWNhoDJgGTWQYsAybAwsh9JHGRgYjlBqYLlEmGUDiPHl2uPfX648aWVgYOgk10AbHh2ZatEAEw4QB0S/3nCm4cWq4wy4DGUhYKA1j5YsK2FPUBApIG9Dw5IsAztB3vty7XE1zKXQMDxCiQs7v1x5cvTLlSfWMD41vHyEUHIZfjmFaDD4DQQA5X0rsCuTcpcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "nph_material_collected",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "5e353b068cd3f2c1c66739112ec3cd57",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAjElEQVQ4jWNhoDJgGTWQYsAybAwsh9JHGRgYjlBqYLmXvFEDiHHn4/Pftz48b2VgYOgk10AbNQHJaldZPQ4QB0TvfnypYdvDcwy4DGUhYKC1Cr8kK2FPUBApIG9Dw5IsAztB3rvz8Xk1zKXQMDxCiQs7b314fvTWh+fWMD41vHyEUHIZfjmFaDD4DQQAF4EryfPB+SYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}