UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mnVuZqxh31zvFtCbk6YZ3R4LoLcJTsiQYt67RngTv1w=' 
WHERE 
  key_id = '768ddfe84f6cf033028b0daa1a866a26481e87514c9f53ce985983a93a6c4d4f' 
  AND (
    token = 'mnVuZqxh31zvFtCbk6YZ3R4LoLcJTsiQYt67RngTv1w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )