Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFNII4XWQg+8YWK5SzzwmDH+haD8nSVuTvOl52eNwjKmDiS5gxeUBKAyaBi… (844 chars)"
  }
}