Store TTS

{
    "version": "latest",
    "apiKey": "abcdefghijklmnopqrstuvwxyz",
    "content": [
        {
            "contentType": "inboundCall",
            "tag": "t1",
            "contentEncoding": "utf8",
            "voiceFormat": "tts",
            "content": "This is an inbound call text to speech file"
        }
    ]
}