Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBXLf2zUPayyNnw4ilGJiIZu1FTgOuc9soBoDoV7XGJfw4BN5VfuVs2Y+B/… (1,748 chars)"
  }
}