UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u6MyZjG3WmHNQ6r9v6nIGRxyhon8vN8bRa7+PoEECfo=' 
WHERE 
  key_id = '8caa6bc4c6dcf35b9f9f428e4c04e0bc18062d64b357f094b3443966e223c4e7' 
  AND (
    token = 'u6MyZjG3WmHNQ6r9v6nIGRxyhon8vN8bRa7+PoEECfo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )