{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Mapbook Grid",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "0b4f31374b4389310b144224d6582523",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA50lEQVQ4jc2UOw6EIBBAR8I1vIATOxsrvYSJN7Ejhs6b+Il3WCsbOsXek7CBjY2yWYsx2VcwZIpHBpjh+76bvu+h6zrwIaUERLzktdYghLjkuV3CMHwBwOQTLsviFXpyGQDkTpim6aSUqn1CpRRUVQW/aJqmZox9hBSUZekimfCAXiiEcC9GJtSEsv++w7ZtYds2OuEwDA+VjIgQRZHrCBKhlNJt7rTXLSEQwylliEgnHMfRxWdKnuc5S5KkPk45Yz/t8c/OFEXhRlcQBJkxBrgd/+u65nba2r72Tec4jr8KGWMuWpnlDcEuUYSPcM+7AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}