Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQBVNQ8s9cOmFDoRi62arIi5Ruy8+oE/x7Cuus7B5nRPBzC5H4voyzleVdYJ… (1,748 chars)"
  }
}