Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFj8Nykm9IwXKNnY+K3cWdaQ+rZOviONnJZUzNQIu5x+CB5IJvrKcvPMLWL… (844 chars)"
  }
}