{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Sample locations",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "fa6bfdce02030d83d02753c3b1c5c9d7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAZUlEQVQ4jWNhoDJgGTWQLmH4H4sYI7kG/l8bjikYvBJsCSOpBv7HZhgIgMRxGcpCqmGEDGVhoDJgGTUQBhhBAY4vYoJXQtQxkBCGOA3FZRgxkQI2FJs4JbHMSIQaBlIMJAkMfgMBtJwZTpf88a0AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "AGESURVEYDATA",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "3b48d982e5cb994140befc83732796bb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAU0lEQVQ4jWNhoDJgGTWQYsAybAz8j8RmpNTA/60M3HBONcPX//gMZSHFMBAA8fEZysJAZcBCbwMZQd5DC0OwOLkGwg1loGIsEzRkeEUKyWDwGwgAHnIQwuxBySUAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "180W",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "c91ea2e17403d08eac23bc4cda91312c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAM0lEQVQ4jWNhoDJgGTWQYsBCuRGoYNRA6oXhfwbqAEaYgYxUMpBhNJYpByxUMINhhBsIADThAVLib9EcAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}