{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Contours",
   "layerType": "Feature Layer",
   "minScale": 12000,
   "maxScale": 0,
   "legend": [
    {
     "label": "INDEX CONTOUR",
     "url": "146ffb0e6952fdefe6bd0dcad9c8e695",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3SsQ0AIAwDwRQeDAZz5cFgs6BIbIC78FWqkywFYQ4ffA5NQUnDgZHcKCwzlwOUNP2TSe6SbZPjHtHrbZzBqkVL8ADUrRQPU0LSfAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "CONTOUR INDEX"
     ]
    },
    {
     "label": "INTERMEDIATE CONTOUR",
     "url": "7d0b8d6299e05949ddbfeb71c8d0fef6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWNhoDJgGTWQYsBCuRGoYKQamJaWZsPMzGxNiUF///49OmvWrCO0ceGsWbOOMDAwHKGagdQELFQ1jWHUQGqAwR8pAGPqC6fuKCGGAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "CONTOUR INTERMEDIATE"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "TYPE"
    }
   ]
  }
 ]
}