Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBKR1/Lw53yWTfil+CZ/Fvd86JFxWVh0RmvprzB4Z35OG0ZdI48vgv6YNhR… (844 chars)"
  }
}