ACCESS_TOKEN = get_token('W')
url = "https://api.weixin.qq.com/cgi-bin/user/info/updateremark?access_token=*******"
data = {
    "openid": "oRXRB1QoNfoOJWlUpm33Nl0OrAYw",
    "remark": r"大王"
}
res = requests.post(url=url, json=data)

print(res.text)

"remark":"\\u5927\\u738b"

请求了设置备注名的接口，不知道为什么？