taxonomy – Unable to do WP_User_Query with meta filter

I’ve a person base of a whole lot of customers, and attempting to create a customized API endpoint to get customers in a particular membership group.

The database construction is as follows (utilizing Final Member plugin):

• Person is saved in wpma_users desk
• Person metadata in desk wpma_usermeta incorporates person meta named mygroups, containing a price a:1:{i:0;s:3:"155";}
• The 155 worth is the ID of a time period

I already tried this, with $groupid=155:

$args = array(
            'fields'    => 'all_with_meta',
            'tax_query' => array(
                array(
                  'taxonomy' => 'mygroups',
                  'area' => 'term_id',
                  'phrases' => $groupid,
                ),
            ),
);
$user_query = new WP_User_Query($args);

After I var_dump get_terms(array('embody' => $groupid)), an precise time period is printed:

array(1){
    [
        0
    ]=>object(WP_Term)#27633(10){
        [
            "term_id"
        ]=>int(155)[
            "name"
        ]=>string(8)"Instance Group"[
            "slug"
        ]=>string(8)"example_group"[
            "term_group"
        ]=>int(0)[
            "term_taxonomy_id"
        ]=>int(155)[
            "taxonomy"
        ]=>string(11)"um_user_tag"[
            "description"
        ]=>string(0)""[
            "parent"
        ]=>int(149)[
            "count"
        ]=>int(1)[
            "filter"
        ]=>string(3)"uncooked"
    }
}

One other approach I attempted, is utilizing the meta_query as an alternative of the tax_query:

'meta_query' => array(
            array(
                'key' => 'mygroups',
                'worth' => $groupid,
                'evaluate' => 'LIKE',
            )
),

This really filters the question, however after I use $groupid=1, it filters the place groupid incorporates 1, so additionally 10, 11, 100 and so on.

Who can level me in the fitting route to filter the person on mygroups the fitting approach?