Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQGd/X3siX1I6yj++l6FOXwbLeBtnyP8rk1nw23SHgk3DXMUVxSJsw9JR6dF… (1,748 chars)"
  }
}