实名认证接⼝

/**
    实名认证包括身份证ocr+活体校验

    @param voucherId 凭证号
    @param successBlock 成功回调
    @param failureBlock 失败回调
*/
- (void)requestAuth:(NSString * _Nonnull)voucherId success:(void (^ _Nonnull)(NSString * _Nullable))success failure:(void (^ _Nonnull)(NSInteger, NSString * _Nullable))failure;

NSString *voucherId = @"skajfl;kdsdjkfhsdkafhdjksbafkj";
[[SignManager shared] requestAuth:voucherId success:^(NSString *msg) {
    } failure:^(NSInteger code, NSString *msg) {
    }];