UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Em2+mIcJ23FVG+9nV+Nnz7cHJDHmP/7recjpVa7TrDw=' 
WHERE 
  key_id = '21b8e896b87bbaceced70bd516bdac6e28b6c583f424f214ecaa8b7fe989e458' 
  AND (
    token = 'Em2+mIcJ23FVG+9nV+Nnz7cHJDHmP/7recjpVa7TrDw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )