这个请求有错吗？为啥一致报401？

wx.request({
  url: 'https://api.mch.weixin.qq.com/v3/pay/transactions/jsapi',
  method: 'POST',
  header:{
    Authorization:'WECHATPAY2-SHA256-RSA2048 mchid="商户号ID",nonce_str="fdgdgdgdgd",timestamp="1611041033",serial_no="商户号证书序列号",signature="使用apiclient_cert.pem加密的字符串(格式：HTTP请求方法\nURL\n请求时间戳\n请求随机串\n请求报文主体\n)"',
    "Content-Type": "application/json",  
  },
  data: {
    appid: "wx7eaf5be3a32r3f45",  
    mchid: "1630408944",
    description: "ggggggg",
    out_trade_no: "123456789",
    notify_url: "https://www.utimer.top",
    amount: {
      total: 1,
      currency: "CNY"
    },
    payer: {
      openid: "o1FyW5YCbFWXvOgnuzNnPNlgdddg"   
    }
  },
  success (res) {
  console.log(res.data);
    }
});