Crontab question for a newbie

I am integrating a BMS system to HA via RPI.

My RPI needs to call command “systemctl --user start jkbms” hourly. I have put that in crontab file in my RPI however its not being called. are you able to check below and let me know what i have done wrong.

Thanks,
Mike

Seams you start your call at 0:53 every day.

This should be the entry to call it every hour at minute 53:
53 * * * * systemctl --user start jkbms >/dev/null 2>&1

Tip:

thanks @HomeTrainee for the command, appreciated.

have updated crontab as above, seems to be working fine.