Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHHy+w4q2jkXHBjhwdVbcsaaWfMTvM3IDSljlmj9D/7uh8FCvOjQA0Fj2Tj… (844 chars)"
  }
}