https://blog.wongcw.com/2022/02/09/%e7%b4%a2%e5%b0%bc%e7%99%bc%e5%b8%83signature%e7%b3%bb%e5%88%97walkman-nw-wm1zm2-%e6%8f%9b%e7%94%a8android%e7%b3%bb%e7%b5%b1/