Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEkdUfB0uhX3mWwWj47hHwwTNVzL1RqY/wqM1LtbzD/IXU7OMSBK/8KrBBU… (844 chars)"
  }
}