arm_change_user_meta_before_save

This filter provides access to modify user details prior to saving into user meta.

Hook Type: Filter
Usage:
add_filter( 'arm_change_user_meta_before_save', 'your_function', 10, 2);
function your_function($posted_data, $user_ID) {
    //$posted_data Posted form details.
    //$user_ID User ID.
    $posted_data['some_key'] = 'Some Value';
    return $posted_data;
}
Parameters:
$posted_data
Posted form details
$user_ID
User ID