UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PtwEx7F2w3PZ8hGeFvvm4PjbCzP8N86KXuvS30E92zM=' 
WHERE 
  key_id = '6ec40206255405df67c4fa6a8a411a56966dd4421abec91189037b75b4a768b7' 
  AND (
    token = 'PtwEx7F2w3PZ8hGeFvvm4PjbCzP8N86KXuvS30E92zM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )