UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ESFFkWl2ntcgSK/n9/vrl/rAVHeAdcakFrNC5Np4+BI=' 
WHERE 
  key_id = '50e9a0fc334a3eb12651c16576c83d1e4700669f185b95761482cdb68ca2ab89' 
  AND (
    token = 'ESFFkWl2ntcgSK/n9/vrl/rAVHeAdcakFrNC5Np4+BI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )