File in API call multipart/form-data

Don’t work.

This is the input of my custom app

[
    {
        "folder_id": 10855,
        "array_file": [
            {
                "data": "IMTBuffer(53270, binary, 6638df3f2c7855ae5cb6176d0798ecad1d92e068): 255044462d312e340a25d3ebe9e10a312030206f626a0a3c3c2f5469746c65202847697448756220436f70696c6f7420666f7220427573696e657373202d20496e7465726e616c205465726d7320616e6420436f6e646974696f6e73290a2f50726f6475",
                "filename": "file.pdf"
            }
        ],
        "document_id": 9339
    }
]

This is the input of the HTTP request that do the same work.

[
    {
        "ca": null,
        "qs": [],
        "url": "https://demo.validsign.com/be/folders/10811/documents/9302/file",
        "gzip": true,
        "method": "post",
        "headers": [
            {
                "name": "Authorization",
                "value": "Bearer {key_value}"
            }
        ],
        "timeout": null,
        "useMtls": false,
        "authPass": null,
        "authUser": null,
        "bodyType": "multipart_form_data",
        "serializeUrl": false,
        "shareCookies": false,
        "parseResponse": true,
        "followRedirect": true,
        "formDataFields": [
            {
                "key": "file",
                "data": "IMTBuffer(284573, binary, 1960f0f8913447bbda1ba6ba31aaf5c8fdae2f29): 255044462d312e370a25e2e3cfd30a382030206f626a0a3c3c202f54797065202f50616765202f506172656e74203120302052202f4c6173744d6f6469666965642028443a32303234303231363137303932332b30302730302729202f5265736f757263",
                "fileName": "Verbale_Consegna_Materiali_Fabiana_Gatto.pdf",
                "fieldType": "file"
            }
        ],
        "useQuerystring": false,
        "followAllRedirects": false,
        "rejectUnauthorized": true
    }
]