{ "layers": [ { "layerId": 0, "layerName": "RTV_SRB_DATA", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "79b6d4b4ac18e3b4ed5a3feee266ee17", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWPJy8v7z0BFwMLAwMBQ6NtCFcP6N9dADKQmGDVw1MBRA0cNHDUQycD+zTVUMxAAfbwHWNC/6e4AAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }