Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBNwQUeXJzGfv2Gncob1eI/6ahvsdB8SdO3TTuFI0Ngtk0Q3Uwqf1UYEV9W… (844 chars)"
  }
}