{ "layers": [ { "layerId": 0, "layerName": "USGS Topo 100ft 1991", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "516ff6d2b8b4e511ef76056639f7b045", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa2KrB0PCfgcGYEoMYGRjOVt9gaKCmCyVBBNhAkMkjLFKoCVioahrDqIEMVAAAB68HPRkoAmAAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }