Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDmYQgIeFqBbNZaS8Qdu4bld4r6QoudmFAuqAqTMy4kyBd1g6xyXVAYJCb/… (1,748 chars)"
  }
}