Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGfgAw15r8SJwVifA4py1MXPxJHPzk6pEtOLYUY2uJnWgMq4UJ0T+5XydIo… (844 chars)"
  }
}