Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHsj5oDYbT6oGrPyDpxG7/IW4tRNo8anE7gKy9x30QnuRRwFazKo9Ihzx7B… (844 chars)"
  }
}