{
 "layers": [
  {
   "layerId": 0,
   "layerName": "bridges",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "66a9085cad46548fb0f3f230c3c9be20",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAOVJREFUOI3t0bFLAmEYx/HvPZ4JUhD2JzS66mhjoctNbYFLOAmiiDi0RxDG1Z9gm9MVDW3Ngrubg5PLTUdwEc85ORR3h6+6CP6293l4Prw8j82OYx/APQQL1V7Jt/UCsQL0x+PdXWwOOt0XX7UJgEZA9gGnU8cbvJmDTucWpfmveorKK9etIiN3bgb+SgOJ7ZzwnbkB7s1AsQoQxbZyImdhwlgKGE1QzuNaoTJOGks5ivZBasDx3zJffDyOzEFvMOOqXeYo8wxUgCAHwzCfvSNpF+k/BD6fpsDl6pm0t/XBDXIAt88Shdk27xVE5SQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}