{
 "layers": [
  {
   "layerId": 0,
   "layerName": "MajorCrustalBoundaries",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Major Crustal Boundary",
     "url": "4e3ba4ca99be972c0e90f2bdfaa716ee",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADZJREFUOI1jYaAyYBk1cNRAygz8T6FZjCgGhlJo3GpGCE07L8NsoJqBDNAwoKaBVAGjBo4EAwFu2gP+7B921AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}