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This method of creating a token for authentication. 
But I have a question, which signature algorithm should I use? 
I tried to use H512 but it was considered incorrect.

I tried to change the algorithm to H256, but with it the method also gave the wrong result.

我试着在论坛上寻找答案，他们谈到改变方法本身，但我需要通过这个方法来做，在这种情况下应该怎么做？