Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQA5CKEh6mdwVpW5wUUtlDbBqEvzxzfC2/LGeLQFkt0oOB93MnqYWeNBxbf+… (1,748 chars)"
  }
}