{
    "status": 400,
    "errors": [
        {
            "error_key": "per_page",
            "error": "wrong_type",
            "error_description": "This value should be of type numeric."
        },
        {
            "error_key": "per_page",
            "error": "wrong_value",
            "error_description": "This value should be greater than 0."
        }
    ]
}

{
    "status": 400,
    "errors": [
        {
            "error_key": "operator",
            "error": "wrong_value",
            "error_description": "Operator \"trytest\" is invalid. Allowed operators : equal, is, greater, lower, after, before, notequal, isnot, contains, ends, starts, like."
        }
    ]
}

{
    "status": 400,
    "errors": [
        {
            "error_key": "fields.0.key",
            "error": "wrong_value",
            "error_description": "Field \"test\" is invalid. Recognized fields : ext_id, external_id, shipping_amount, discount_amount, total_price, tax_amount, currency, sales_person, creation_date, created_at, ordered_date, ordered_at, c0, c1, c2, c3, c4, c5, c6, c7, c8, c9."
        }
    ]
}