Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQH+/ytRmajzBzXfwtTVUQFTFQVZoWZ0yH68ioiYN8GwTxEPSAMyp9Nf9xjP… (1,748 chars)"
  }
}