UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9agJ4QpT46/INd7wKSedxOANfORsPl8PqD+vwqO2vzU=' 
WHERE 
  key_id = 'e84df0dcd60b418612dde572fc0cf2cfd490899a79af173444810056e95e1311' 
  AND (
    token = '9agJ4QpT46/INd7wKSedxOANfORsPl8PqD+vwqO2vzU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )