Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF1zAJ7meSh+wvmg68k9KqEhTlV5d2XTcIJIizK9B+iQzf6gz5eRa1cfb5V… (844 chars)"
  }
}