There are 2 steps to this process, the first is to create a User and the second is to specify which databases and abilities the user has access to
mysql> CREATE USER root_bk@localhost IDENTIFIED BY 'p@55w0rd';
mysql> CREATE USER nicole@localhost IDENTIFIED BY 'pa55word';
In this example I am creating 2 users, one will be a backup to the root user and one will be a regular user
The Name of your MySQL Instance
New User Name
The MySQL Commands for this function
The Users Initial Password
Note: These are not good passwords just examples