display the user profile like at the end of the blog post where I only have to change the user id.

um-after-post-profile.php

<?php
/*
Code snippet of Plugin Ultimate Member
URL: https://wordpress.org/plugins/ultimate-member/
*/

// Display field data of Ultimate Member
// e.g. [um_field_data userid='24']


add_shortcode('um_field_data', 'um_profile_after_post_shortcode');

function um_profile_after_post_shortcode($atts) {
    $default = array(
        'userid' => NULL,
    );
    $a = shortcode_atts($default, $atts);

    ob_start();

    um_fetch_user( $a['userid'] );
    $user_id = $a['userid'];
    $name = um_user('display_name');
    $avatar = get_avatar( $a['userid'], 96 );

    // get_avatar( $a['userid'], 96 );
    // um_get_user_avatar_url( $a['userid'], $size = '96' );

?>
<div class="um-members um-members-grid masonry">
<div class="um-member" style="max-width:300px">                                    
    <div class="um-member-photo radius-1" style="text-align:center">
        <?php echo $avatar;?>
        <style type="text/css">.um-member-photo img{border-radius:50%;}</style>
    </div>
                    
    <div class="um-member-card" style="text-align:center">                                 
        <div class="um-member-name">
            <a href="<?php echo um_user_profile_url();?>" style="font-size: 16px;line-height: 26px;color: #444;font-weight: 700;">
                <?php echo $name;?>
            </a>
        </div>   

        <div class="um-friends-bar" style="text-align:center">

            <div class="um-friends-rc" style="display:block;float:none;margin-bottom:1em;">
                    <a href="<?php echo esc_url( UM()->Friends_API()->api()->friends_link( $user_id ) ); ?>" style="border:none;">
                        <?php _e( 'friends', 'um-friends' ); ?><?php echo UM()->Friends_API()->api()->count_friends( $user_id ); ?>
                    </a>
            </div>

            <?php if ( UM()->Friends_API()->api()->can_friend( $user_id, get_current_user_id() ) ) { ?>
                <div class="um-friends-btn" style="display:block;float:none">
                    <?php echo UM()->Friends_API()->api()->friend_button( $user_id, get_current_user_id() ); ?>
                    <?php do_action( 'um_after_friend_button_profile', $user_id ); ?>
                </div>
            <?php } ?>
            <div class="um-clear"></div>
        </div>
    </div>
</div>
</div>
<?php

    $shortcode_content = ob_get_contents();
    ob_end_clean();
    return $shortcode_content;
}