{ "layers": [ { "layerId": 0, "layerName": "Historic Engineering Projects", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "f1a86f89a9d686ac8494cdec0eace297", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYBk1cNTAwWJg6H+G/9QwbDUjAyNtXLiakYGRqgZSE4waOGogGQAAJ3cD/r9XJAUAAAAASUVORK5CYII=", "contentType": "image/png", "height": 20, "width": 20 } ] } ] }