How can I change ownership of my stored procedure and event in mysql/Mariadb?

Question

I have create a stored procedure and event. Here event calling that stored procedure but issue is that event and stored procedure created by a dba user, that should be change. But now I want to change the ownership of those stored procedure and event dba to system user.

How can I change ownership of those event and procedure using mysql & mariadb?

Note: I can't directly create those event and procedure using that system user due to some restriction.

Thanks In Advance