UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mh/4BTvfB/k1D+CTZNjynvSuX3pLtzfTlNPo4aLWI1o=' 
WHERE 
  key_id = '97bd49ff94bb2e7021c7caec762495860b802d700e03807d99cc93be4da4e5bc' 
  AND (
    token = 'Mh/4BTvfB/k1D+CTZNjynvSuX3pLtzfTlNPo4aLWI1o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )