UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xFdctVEpaZOCDpCoDMI9DYjTo2z+9zhqubc9MqZRfKM=' 
WHERE 
  key_id = '6840440529ade5366ecf20b78c7856b70a0e78dadcc8d474218fcbf367a48e2f' 
  AND (
    token = 'xFdctVEpaZOCDpCoDMI9DYjTo2z+9zhqubc9MqZRfKM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )