UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ay8G4/AVBmotp3UWryyaTGAbYNPuEDqYfuqsk3dHKMc=' 
WHERE 
  key_id = '2014ecbf1877e68e40c45ea0919fb3b1f372271204700906df1f3f0ccc9365a3' 
  AND (
    token = 'ay8G4/AVBmotp3UWryyaTGAbYNPuEDqYfuqsk3dHKMc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )