{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Seismic Survey 3D Transect Lines",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "58a5c1b0a40bd1a565fb0e2ad6da22ff",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALElEQVQ4jWNhoDJgGTVw1MDha6Ba8X+qmHarl5EFxqCKgQxDJwxHDRzeBgIADNcEueRInrYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Seismic Survey 2D Transect Lines",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "c289e8db576a728c5eca2151c3dec2db",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAL0lEQVQ4jWNhoDJgGTVw1MBha+AKBob/1DAsgoGBkQXGoIaBDAxDJgxHDRzmBgIAOj0Cqi+BRqkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}