Bad Request Your browser sent a request that this server could not understand

I am trying to make get an oauth acces token from magento but when i sent the data i receive this error.

Bad Request Your browser sent a request that this server could not understand

This is the header of the request im sending.

"Authorization":"OAuth oauth_consumer_key="blank for privacy reasons", oauth_callback="blank for privacy reasons", oauth_nonce="2hf5FfiJplHLFBslkDbJBX4xnebUUTZw", oauth_signature_method="HMAC-SHA1", oauth_timestamp="1667573144", oauth_version="1.0", oauth_signature="PJPiRYAIZG2cnkBTmfMuexzw%2BGc%3D"","Accept-Encoding":"deflate, gzip","Accept":"*/*","Content-Length":"0","Host":"magento-control-panel.test","Content-Type":""}

the request goes to /oauth/token/request. I sent the data using Curl.

    curl_setopt_array($curl, array(
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => '',
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 0,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => 'POST',
        CURLOPT_HTTPHEADER => array(
            'Authorization: ' . $data["Authorization"],
            'Content-type: ' . $data["Content-type"],
            'Host: ' . $data["Host"]          
        ),
    ));

    $response = curl_exec($curl);

    curl_close($curl);
    echo $response;

I dont know what i did wrong. If you know a way to fix it please let me know, Thanks!!