{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Marking Point",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "a44afb8eee0e27fa1ac58ed2ab4e440c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAMdJREFUOI3t0z9qwgAUx/Hvi1EcOpe6SOIBvIUBj6CFFg9gO2iKcRYCjQhCL+LaU5QeoEYX1+5Wf126tGDxTxaDv+394H14y3PJOO4FPFMw0qoYW2WdDSjZF4tZqLSdmPd5MhiyaAmaWzEEnk4C75WWNxA7gGN0I328xFZbHg1eQ09Q/RnLazkj4O4o8EHpjWDwqzRuQ6WTxLy3g8GSGGFc/akdwTMQHAQ+al4HOjt2Gn3Ng7H5r3uDU/PfgcKuK/5LTl4vX+A3rwo08HpWwKcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Marking Line",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "c5349c6d6394628cf4bb55705d99029c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYBk1cNTAwWLgua/V/6lhmBF3KyNtXGjE3cpIVQOpCUYNHDWQDAAA0pgFFAHUyuIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Marking Polygon",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "b1a044b9b75677bb157f05141990eff1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADxJREFUOI1jYaAyYKGlgf+pYB4jigv/v95HvkmiTgwMDDT28qiBowaOGjhqIHYDYUUQmYAR3UBGSkyDAQDOvASrc8+0BwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}