Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQALszWShIHI6MEm6BdGpm3HXTA8Jgpv+j2m+5qZ18k7kghF4GFIlwiblIS+… (1,748 chars)"
  }
}