{
 "layers": [
  {
   "layerId": 0,
   "layerName": "TRANSP_Airports",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "cfb3c889ab21b774d4899cd6f0d9cdb3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAiUlEQVQ4jWNhoDJgGTWQYsAybAxsgNIHoJgiAxtEnTXrQYyv997Uf7v/uhHJApINdOBSFK0XcdIEc0ScGBje7Lte/3rvdQZchrIQMpBbSYSAEgoj5eu9Nwz4wpGFgP4GkPdAYQdzKTQMyTYQBBq+3X994Nv91w5gHp4IIcXLBJPL8MspRIPBbyAAByEqIr67a2sAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}