Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHmeY+yOyq6BoWZzf2C6T6rvpSYuvp0KriEVzYTDCWbXCYZp4p2N3lAbDHx… (844 chars)"
  }
}