def METHOD_NAME(
    external_id: str, subscription_id: str, check_time: Optional[float] = None
) -> None:
    subscription_data = _get_subscription_data(external_id)
    assert subscription_data["id"] == subscription_id
    assert subscription_data["check"]
    assert subscription_data["secret"]
    if check_time:
        assert check_time == subscription_data["check"]