{ "layers": [ { "layerId": 0, "layerName": "Elevation Contour (USGS, 2017)", "layerType": "Feature Layer", "minScale": 24000, "maxScale": 0, "legend": [ { "label": "", "url": "426bbc0e4a88dc78dcc30b1b5c0df89d", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQUlEQVQ4jWNhoDJgGTWQYsBCuRGoYKQaeP363AYGBiZ7yoz6d1BTM7mBNi7U1ExuoKqB1AQsVDWNYdRAaoDBHykAY1EHhoWxFOwAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }