Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDENYSifsRCQbs1IAS1c4IAoEfTXlL6Noa8qObrMEyyuVH/2IzE0Y0bOh1+… (1,748 chars)"
  }
}