UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L66RCEIRSVOduyDActg2C2mCTKcIxMYmItvDApt+nBM=' 
WHERE 
  key_id = 'e4a46056cbbcc460aea42d841b572c314eec84da777ec3360b9c6b39bf0b6c7d' 
  AND (
    token = 'L66RCEIRSVOduyDActg2C2mCTKcIxMYmItvDApt+nBM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )