Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQET8NGP8/Vq+P2TqZsZgU0GrqW0qyJdyRMyVSE0r/RqXh1LvA68bYYQhJLv… (1,748 chars)"
  }
}