Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFtpWLJ/5rrqoDNXJVwuQOl2uBjI44r2Lzoc9ox0dSQEE2zJq9y+zmF5LtZ… (844 chars)"
  }
}