UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MCSevDWTKtYFn5nM22LV7ghUAL+S+shjAvEpTUWCtQw=' 
WHERE 
  key_id = '6918951273eb7835b41a1ea9184d2333fdb5a6bb551d260d1864330de9f85881' 
  AND (
    token = 'MCSevDWTKtYFn5nM22LV7ghUAL+S+shjAvEpTUWCtQw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )