Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFOJJ2hqvgLlC/9eF8MHIwwRc8zNPVrIcJK1R2+bC1FszfldlFe6/raZMK7… (844 chars)"
  }
}