UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UeBxPSp4GwLm1msD7t4UFNelrcfc8GMJPaaasbnANzc=' 
WHERE 
  key_id = '76b38052d78e5540d34c58951554a3f93ebcd177457a350a562cbe68c0694696' 
  AND (
    token = 'UeBxPSp4GwLm1msD7t4UFNelrcfc8GMJPaaasbnANzc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )