Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHYQ+zRBeY1N0SSb/XOL28r/VuOPvblS3qY0sDo6oEzZ11qWDIL9p6QjW+F… (844 chars)"
  }
}