UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6jDBAmi32RDbEh/p+EPx+HdKFtptK4wM5bqNsQjNOmM=' 
WHERE 
  key_id = '83db96229c309b8d3472c0cb6f1aeadd52e1cf8148371135593e8769bcae5797' 
  AND (
    token = '6jDBAmi32RDbEh/p+EPx+HdKFtptK4wM5bqNsQjNOmM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )