UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6Z/XV3AhGXztBTGG3XALa9PznTUg2VLP4nm8dqBtI44=' 
WHERE 
  key_id = '4cf0f96ef417ba79dd50f28b96bc3e198897f00921de3bab84671af853685040' 
  AND (
    token = '6Z/XV3AhGXztBTGG3XALa9PznTUg2VLP4nm8dqBtI44=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )