Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDQbKOAxKM6Re+d+QOE8u3XWGguTkZfIxCnlK5vnBH2Y3p6eWTArl84hJuY… (1,748 chars)"
  }
}