UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+l7KuV1xiz963k/P8Ejjt+wL27LNSethIsW0uVpU/L4=' 
WHERE 
  key_id = '16496957c538b10f4cff283d9ef34e5a800623992b61d9be626c72a93d12a883' 
  AND (
    token = '+l7KuV1xiz963k/P8Ejjt+wL27LNSethIsW0uVpU/L4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )