Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHo0yU617qwg+r8+wGQVwmTVT2guzd7bDy0QZJYLpzkRHjAu+TgjGH0M0oQ… (844 chars)"
  }
}