UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ytgQ1daaCVffbuVXfYVU/z6TC8eDiQfesLK0PXBKGgo=' 
WHERE 
  key_id = '251a35cf07100cb074c6740c6fbf7fc5e722be7ab8890446f8737f4e47af9274' 
  AND (
    token = 'ytgQ1daaCVffbuVXfYVU/z6TC8eDiQfesLK0PXBKGgo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )