UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WMMAcCIOPS/C3WlvNpN+z8NY0ta0dLxF8cKc0HNzpGI=' 
WHERE 
  key_id = '21fc3dcff82182309d49672be44e25859681d5dc92e10a95e10c149ce681e117' 
  AND (
    token = 'WMMAcCIOPS/C3WlvNpN+z8NY0ta0dLxF8cKc0HNzpGI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )