UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '7llBBDWNBr2O7qvxq+FPZeTa7xSb3rQGGN/wdfjH794=' 
WHERE 
  key_id = '68a581e7cd8a72b99dfdccef3005aafa648783a781d8bb7975a95cace092616c' 
  AND (
    token = '7llBBDWNBr2O7qvxq+FPZeTa7xSb3rQGGN/wdfjH794=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )