UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WL51JWhwf8N2QUYDfX5CO02pldsKbboGwmLefEYh8ZQ=' 
WHERE 
  key_id = '2373ce4c6febe944f1699e579ad5e606a9d51d3b22b6fd20c76a8b03d550bc96' 
  AND (
    token = 'WL51JWhwf8N2QUYDfX5CO02pldsKbboGwmLefEYh8ZQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )