UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PiDzhb8QHkK/DeQXzYErrgmWyaEdr8PDalwUd45IroM=' 
WHERE 
  key_id = '6af7f56f93246d40a8aa8aedaf10ff367294964754fb9ee183f16eafd5ced4a8' 
  AND (
    token = 'PiDzhb8QHkK/DeQXzYErrgmWyaEdr8PDalwUd45IroM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )