{
 "layers": [
  {
   "layerId": 1,
   "layerName": "Media",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "VR",
     "url": "4d0bcdfc2c76340e3ffb6ac2ee9aee11",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 23,
     "values": [
      "VR"
     ]
    },
    {
     "label": "audio",
     "url": "2693fb6c04c610d792a013d5261924e9",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "audio"
     ]
    },
    {
     "label": "video",
     "url": "6b3abf7db72b1d76bd5c2251154bb436",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 25,
     "values": [
      "video"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "TYPE"
    }
   ]
  }
 ]
}