developer/api/v1/users/Get-AuthorizedUser.ps1

function Get-AuthorizedUser
{
    param(
        [Parameter(Mandatory)]
        [string] $AppAlias,
        [Parameter(Mandatory)]
        [string] $VersionAlias,
        [Parameter(Mandatory)]
        [string] $UserId
    )

    return Invoke-Api Get "/developer/api/v1/apps/$AppAlias/versions/$VersionAlias/users/user/?identification=$UserId"
}