{"layers": [{
 "layerType": "Raster Layer",
 "layerId": 0,
 "maxScale": 0,
 "legend": [{
  "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBzxhW/qfEICmGcEYUA6kFWEYNpBiwUG4EKhg1kHLAQgUzUMCogZQDuIGw8oxqBlILAAAuGwPDGn13FgAAAABJRU5ErkJggg==",
  "groupId": "0",
  "width": 20,
  "label": "2",
  "contentType": "image/png",
  "url": "bf5e13ae264c3e7c8de2e164a2eb743b",
  "height": 20
 }],
 "legendGroups": [{
  "heading": "Value",
  "id": "0"
 }],
 "layerName": "ConstraintAreas",
 "minScale": 0
}]}