{ "layers": [ { "layerId": 0, "layerName": "US Census 2010 Urbanized Areas", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "6bb19a2c9057940695d397d6e65f27db", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAM0lEQVQ4jWP5/5/hPwMVAQs1DUMxkJGRgZESg2A+pZ0LRw0cNXDUwFED6WMgtUpuqrsQAPFLCUunaIBQAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] }, { "layerId": 1, "layerName": "US Census 2020 Urbanized Areas", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "55ae2043a683b93adfc5f7e54c22625a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhOPr/PwMVAQs1DUM10JqRkWxTkHxJQxeOGjhq4KiBowZiNZBKBe3g9zIAU4oI18uDCJMAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }