Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE1QG4wPk2BxNMdp8W7njEkViEaLdtAOAADfQtTQWKHEjvgbnDEuRRKZFg/… (844 chars)"
  }
}