Get Offer By External ID

{
    "meta": {
        "lang": "pl"
    },
    "data": {
        "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
        "external_id": 0,
        "external_url": "http://example.com",
        "text_request_required": true,
        "text_request_endpoint": "http://example.com",
        "synced_at": "2019-08-24T14:15:22.123Z",
        "ended_at": "2019-08-24T14:15:22.123Z",
        "name": "string",
        "price": "string",
        "currency": "PLN",
        "category": {
            "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
            "external_id": "string",
            "name": "string"
        },
        "product": {
            "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
            "external_id": "string"
        },
        "seller": {
            "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
            "external_id": "string"
        },
        "images": [
            {
                "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
                "variants": {
                    "s256": {
                        "url": "http://example.com",
                        "external_url": "http://example.com"
                    },
                    "s512": {
                        "url": "http://example.com",
                        "external_url": "http://example.com"
                    },
                    "s1024": {
                        "url": "http://example.com",
                        "external_url": "http://example.com"
                    },
                    "source": {
                        "url": "http://example.com",
                        "external_url": "http://example.com"
                    }
                }
            }
        ],
        "parameters": [
            {
                "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
                "name": "string",
                "unit": "string",
                "values": [
                    {
                        "id": 0,
                        "value_id": "f0364b24-eaa7-4868-8878-708511209642",
                        "value_hash": "string",
                        "is_translatable": true,
                        "value": "string"
                    }
                ]
            }
        ],
        "text": [
            {
                "items": [
                    {
                        "type": "TEXT",
                        "content": "string"
                    }
                ]
            }
        ],
        "replacement_offer": {
            "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
            "external_id": 0,
            "external_url": "http://example.com"
        }
    }
}