UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zMlflFQZp19ZRwpC5NhfHPgqN47LefoBgKsiPBIQGPI=' 
WHERE 
  key_id = '6bee64ab50013987b9464a9b11aa6424d49f09686539c6a590fe85018d5c9a14' 
  AND (
    token = 'zMlflFQZp19ZRwpC5NhfHPgqN47LefoBgKsiPBIQGPI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )