Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCKp7g6YeUwo/fwHKZQpC+/F6EWXTM39tuNxmgvRmhr6ziLG9bfB5Yu0qrJ… (1,748 chars)"
  }
}