Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQDfNrhQVa8woCmxGDpnrj1tN9ZpimjsvhDv6eC5DWYbwTkfdA5r0zKfpR3X… (1,748 chars)"
  }
}