Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFHnoW/SxPn3uWS5B4T7YvEhWKK+g8VU+xDoVnRf+7fehmcqKXqB8+ObCu9… (844 chars)"
  }
}