UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wLck1L8jmv+WbZzV7chGXd8E6wdcwZ12zmRm56Tu/2o=' 
WHERE 
  key_id = '876004a7ff8df594465305adf6ade9150113245081053b9af17b602965462d03' 
  AND (
    token = 'wLck1L8jmv+WbZzV7chGXd8E6wdcwZ12zmRm56Tu/2o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )