{ "layers": [ { "layerId": 0, "layerName": "Flow Lines", "layerType": "Feature Layer", "minScale": 144448, "maxScale": 4513, "legend": [ { "label": "", "url": "c117b23f41d763b36cdca23b2423d82b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOUlEQVQ4jWNhoDJgGTWQYsBCuRGoYMQaePT/f6qYZs3ISCMXWjMyUtdAKgIWahoGAqMGUg4GfxgCAAfsA45zTLzsAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }