{
 "layers": [
  {
   "layerId": 321,
   "layerName": "Seafloor geomorphic features",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "a3d8727174ee8e66a46ae50d37616058",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA6UlEQVQ4jZVUMRICIQwMM2m10WfcC7TxBfgWC6+6zuuu8C3yAh9xz7DSB+CEGWYyQEJuqyTAhoUFPI2P+bj7XkBBWD34IYh5xue3fyORvablDCoWMXe3CPHpUnyd74B8Gh+U4hKxqKM0KMUaeUVogUYeVi9LttTLmh8CILHmQ5a6b5LsG9dvJS9V+MNok6yRRNaoss0WaVIjtEwuyVvNHJfcM3EvryRbTSztLLJaU3KeZN0ZB1qsscXwmAPtRq2eDL2nZ7kgYFCfXm9xq3myTfn0rOfVap5sQ982Bflbpy6UV3KEOiGvJa4/kDLJMrDMbPAAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}