Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG7Xok3eQoNgFu1SkRezXqmy6r7aS5/5d0+yGzb/5Vw3GMfydJ2Wx4zBUzC… (844 chars)"
  }
}