{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Trục đường chính",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "216b44899a4bb38157afb7f50da4abd6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYBk1cNTAwWLg/z22/6lhGKPLYUbauJDR5TAjVQ2kJhg1cNRAMgAAhDoFWiL1kzkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Trạm điện",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "e7dbb421704c65b537e76d03dca85e8d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAM9JREFUOI3tk7FtAmEMRp8B6Rc6CQkrzQ2QLhOkYABGYACUipKO7hZIImWAlNmBNDRQMcYVgFMhZFGY4pL2IuBSJIor25KfXvG5Q8PV+Qf+LDDgJtCihT00BNRHgVGQvwvl21XAgCEwqiZ/DpgL7C43VC1jz5M4E2AKtK8yFLN1oINP23tSfhvuG7AXgeP5hgDKEuMgMMb9a/kB9noRUMxWAX2gS0p3eLYAenU33+ZQwAEP123V1tcZwS43kGZotsQaAFaR8QKrt/zlv/w3gSeLBDyqHUVyiQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}