Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDAr/7hrIByCRkbAx67MdcQeimS1xZeE4aH8glsMUI72R1wK7UbMu4Yl5n+… (1,748 chars)"
  }
}