UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'm/Gltf4Widx0ql1bgmE/36sCaNxsKR6cb5JCETaZ+WM=' 
WHERE 
  key_id = 'c842ed541700f9dab12402130be2ce9842759f9b3f3bc65b04de8f8d1c6cff0a' 
  AND (
    token = 'm/Gltf4Widx0ql1bgmE/36sCaNxsKR6cb5JCETaZ+WM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )