UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E7DkK44oV0JefdlZwGp30KweYfn4LtKBvTvpsJvxVhQ=' 
WHERE 
  key_id = '688e1a68c566e2453ff8815fa4d8732afc41c32300a19e32f351a9c7f2c3e544' 
  AND (
    token = 'E7DkK44oV0JefdlZwGp30KweYfn4LtKBvTvpsJvxVhQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )