{
 "layers": [
  {
   "layerId": 0,
   "layerName": "STM_Main",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "55e39b655737fcfe96955be32fe068d0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4jWNhoDJgGTVw1MDBYuDi/8X/qWFYLGMvI21cGMvYy0hVA6kJRg0cNZAMAAA7DQU9Qbxu4QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}