Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE8/s/YRk2f8KP5Rqk/MX1992DZhzME3By8RbRlWTAcGlP0XUl1mD3riSR+… (844 chars)"
  }
}