{
 "layers": [
  {
   "layerId": 0,
   "layerName": "City Centre",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 3001,
   "legend": [
    {
     "label": "",
     "url": "20183ba3cd217b2bbf139fbe94a8850c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWP5z8DQw0BFwAJnaSlSZtK1+0gGaikyMNTFU2Zg00IGhmv3kVxIJTBq4KiBowaOGkhPA6/dh5RnlACUAhZJgFIAAPyUDh4iTX44AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "City Centre",
   "layerType": "Feature Layer",
   "minScale": 3000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "778ef03935c61de5d3f17a44466e274e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4jWP5z8DQw0BFwEJNw9ANvAvF5ABlKEY1kJGBYRc5pv1nYHDDZiBVwKiBowaOGjj8DFSGlhrkAGWsBiJLkAuo7mUANywIrQRDzvcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}