Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwID90vWO/Gcj2iwnlv9Rhsm6l4/NKKcIAEtIeEJ5F1CsAKs5uTO+WZ6PSZK… (844 chars)"
  }
}