Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG4iBPco9eYCjtYWzBd/QZn35FxvPJDxOl9ZVG6ojAyDnRvxpDwCMKqq5xs… (844 chars)"
  }
}