UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z4OvbmfXSgm9CbxRIGRxGK3M6Hiu8/e6Nvh0agUeqLw=' 
WHERE 
  key_id = '49c766628d89c1e9e573e6bfc390a8fb9a00e498e823e74426dd0e41475ffaa6' 
  AND (
    token = 'Z4OvbmfXSgm9CbxRIGRxGK3M6Hiu8/e6Nvh0agUeqLw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )