UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8k8nqufr18WL8O5rhN6exQc5nbQSXTV1HEfhxZohTGY=' 
WHERE 
  key_id = 'a76dfdfa7063184169443b50c7717fd906a4691cfd7bdee0f525a42afd05f68d' 
  AND (
    token = '8k8nqufr18WL8O5rhN6exQc5nbQSXTV1HEfhxZohTGY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )