{ "layers": [ { "layerId": 0, "layerName": "Traffic Barriers", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "57515628440054902a0b29d855a2224d", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAO0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa2M8g/58ahhUyPGSkjQsLGR4yUtVAagIWqprGMGogNcDgjxQAy40EpN5f5TIAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }