Updating a column after expiration of specific time in MySQL

Question

1. I have a table where I have a column named state(int(2)) and modify_time (time_stamp on update current timestamp).

2. I have an update trigger which changes the value of state column to 0 based on some condition.

3. I want to set the value of state column to 1 after 24 hours of modify_time, if it is still 0.

4. I tried below method to test :

   CREATE EVENT myevent1 
    ON SCHEDULE AT current_timestamp + interval 1 minute 
    DO UPDATE test.mytabletable SET state = 0;
   

This did not doing anything. Is there any alternative method?