Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHbQv/P+Wvj5SfccUrFXZrkfxA/1ikmVP3leDjgtZkx6xtcK6EFKEsztf21… (1,748 chars)"
  }
}