{"layers": [{ "layerType": "Feature Layer", "layerId": 0, "maxScale": 0, "legend": [{ "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZumh+6D9GhtcMVABM/xlEWUCGxcYmHqCGgYsXz3dgYaAyYBk1kGLAQrkRqGDUQMoBCxXMQAGjBo4IA5n+M4iCSlpqGAYyCwCU+g/HB+rsXgAAAABJRU5ErkJggg==", "groupId": "0", "width": 20, "label": "", "contentType": "image/png", "url": "40b81256ffeab46709f1f6a12ba93515", "height": 20 }], "legendGroups": [{ "heading": "", "id": "0" }], "layerName": "CensusTracts", "minScale": 0 }]}