UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mzM6Kp0ViZi44aaVw1/DXZJw1wBnjRNWlS20s4KE+i0=' 
WHERE 
  key_id = '18d4341b58631c80b762767303f72544a46cacf1d7f11204ce426bd3a8494f56' 
  AND (
    token = 'mzM6Kp0ViZi44aaVw1/DXZJw1wBnjRNWlS20s4KE+i0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )