UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zmBT+OUTUYXpo8QDFKBdFMcGW2gBjYQNmikEATdU/+E=' 
WHERE 
  key_id = '831cd60535d35552612eb082c8780ac0d98af125d38e177d07695565c989ba92' 
  AND (
    token = 'zmBT+OUTUYXpo8QDFKBdFMcGW2gBjYQNmikEATdU/+E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )