UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'w6QMX26sGZKoTcGhRS0fVXlmho1bVHxZHq3dxfuMVLk=' 
WHERE 
  key_id = '831220e26e3c55f552e863f3613d4ed5f29f64913991152194713a9c695a95ac' 
  AND (
    token = 'w6QMX26sGZKoTcGhRS0fVXlmho1bVHxZHq3dxfuMVLk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )