Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCUO2qv40NmYoK9cMasFTRH3i6T4w9Y7emaCSWDkNllSFkX3+e3P0typq4+… (1,748 chars)"
  }
}