{
  "manageEntity": {
    "action": "Create",
    "entityId": "321605024",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":321605024,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Country\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"small session 1\",\"duration\":45,\"audio_upload_id\":\"b01b1966b2ee8d5fbad4ef4789b2438d\",\"track_cid\":\"baeaaaiqseadjeww5ur3zlbusmvi7775gwgqetcl7bz2e2xzvvvpa7x5fdevlo\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebpdsb7f4nsmozdhproyhxugjp4ifag3tf6qc2ahe5j7qwy5wdims\",\"orig_filename\":\"small_session_1.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":113,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":928,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedwr6rwzztjctju5qaiwgb3h2jm2xg5tylgvsvhg35ecpuk52zhs4\"}}",
    "nonce": "0xfdc9f6dd74dbe7730ed4488c2c6dbd974318857c25dd8cff7a5feee69b3599a4",
    "signature": "0x839ab06ba954c9b793166c9c24a1dafffadecd7d5e3016d54a382c4647d6e477247d5509666536527d9be31795f8adbb4ae0cca2d3689587907e2b7e5fab53511b",
    "signer": "0x4C6e133dCB8D96CB813b2930642Bd4C654ad73cd",
    "userId": "928"
  }
}