{ "layers": [ { "layerId": 3, "layerName": "Streets", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "fb3caec271d9bf531715f4d6af33b969", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWNhoDJgGTVw1MDBYuCsWbO0mZiYtCgx6N+/f9fS0tKu0saFaWlpVxkYGK5SzUBqglEDRw0kAwAALN0LLXW/oAIAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }