{
 "layers": [
  {
   "layerId": 0,
   "layerName": "宁津耕地质量点样本",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "70e040d3d3077cf944d63a5e5170fedb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFNJREFUOI1jYaAyYBk1cNRAOPiPxGak1MD/DJ05CF75lP/4DCVkIKphDAwMDJ05eA0d+pHCyFA+BT0MIeJkGogwFJmPBxDrZbyGkGMg0WDUQMoBALR/EF0Cxly/AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}