Swift 如何在ios中订阅Youtube频道？

我已经尝试了以下网址

职位)

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你找到解决办法了吗？

Request Body : {"snippet":{"resourceId":{"\(myChannelId)","kind":"youtube#channel"}}}

But fail to with Error code : 

"errors" : [
      {
        "domain" : "global",
        "reason" : "authError",
        "locationType" : "header",
        "location" : "Authorization",
        "message" : "Invalid Credentials"
      }