{
 "layers": [
  {
   "layerId": 1,
   "layerName": "ControlPoints",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "3c9a6584e13e269087dee9cf9d2b3410",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAjElEQVQ4jWNhoDJgGTWQYsAybAwsh9JHGRgYjlBqYLmTpWADiPHg6fff9x79aGVgYOgk10AbJTmOajtTfg4QB0QfOv2xYd/x9wy4DGUhYKC1gjQnK2FPUBApIG9Dw5IsAztB3nvw9Hs1zKXQMDxCiQs77z36cfTeox/WMD41vHyEUHIZfjmFaDD4DQQAT7Ur5095snsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 0,
   "layerName": "Contours",
   "layerType": "Feature Layer",
   "minScale": 24000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d7932c105ee500fd40089a38c3e8b6df",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWNhoDJgGTWQYsBCuRGoYKQaaNNu0PCf4b89JQYxMjAePFJ5oYE2LjxSeaGBqgZSE7BQ1TSGUQOpAQZ/pAAAf7AJ3ojobPoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}