{ "layers": [ { "layerId": 42, "layerName": "2011 Lower Super Output Areas", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "0aaf31420e6386113cbd48444c58997b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADJJREFUOI1j+c/w/z8DFQELNQ0bNXAoGsjIwMiITRxfUhviXh6BBpJTcAxxL48aSBQAAOlSCUtJAVdrAAAAAElFTkSuQmCC", "contentType": "image/png", "height": 20, "width": 20 } ] } ] }