Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQGI3VRugl1Lnb7P2l/cEij+5T1EepeOlXz2vS4qIVaFfleH4LvFEUKtYr5H… (1,748 chars)"
  }
}