{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Urban Noise Centers",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "25139b191d9164d8ece04f5fbad6479c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWNhoDJgGTWQYsBCuRHD0sBcI6b/MPbkc/8YKTIwF8kwGB+foSwMVAYsdDdw8rl/jFQNQ2IMGWZhSCpgIVnHkDcQABeZErG9PyjMAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Urban Cover",
   "layerType": "Raster Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Noise Agglomeration 55dB Lden",
     "url": "c9ed6791e273344ed351af782d95d19b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAP0lEQVQ4je3UoQ0AMBBC0TZhbgSLt+qanIa6+wM8gQArHL6Bko4DkdwNTIUB7eATvQH9EDBaA/q9DevPYmCqCzHKBcyfdS1GAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}