{ "layers": [ { "layerId": 0, "layerName": "US Census 2010: SF1 Indicators", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "3ecf0be8f88bd73f792c717288f4405d", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWPJy8v7z0BFwAIi2jujqGJYZfkyiIHUBCyjBlIMWCg3AhWMGkg5YKGCGShg1MARE4aV5cuoZiIAfQQHMKSj2KcAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }