{
    "performer": {
        "artist_id": 2
    }
}

{
    "performer": {
        "artist_id": 2,
        "not_known_field": 12
    }
}

{
    "status_code": 400,
    "error_description": "There are errors with your arguments: performer - UNKNOWN",
    "error": "ARGUMENTS_ERROR"
}

{
    "status_code": 400,
    "error_description": "There are errors with your arguments: performer.not_known_field - UNKNOWN",
    "error": "ARGUMENTS_ERROR"
}