Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQDR7BhUeNMHl5iG7YuPIgDI5xmyyRSEDPlng1+lu3ReSAfxI//le7r1K2b5… (1,748 chars)"
  }
}