Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD+4C7KYP7byksCqX0u5zHz+vRyZNu1BSoIZI5/bSvS0UKCRrnnQI9g3JFB… (844 chars)"
  }
}