{
  "manageEntity": {
    "action": "Create",
    "entityId": "491811406",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":491811406,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"kame 1\",\"duration\":233,\"audio_upload_id\":\"2810313f25351ae6c7ed7df079a5e130\",\"track_cid\":\"baeaaaiqseciwr6vtmns5esvyzy3vuma3s3qjltsflpwusm5ipmw7iknv2hmh6\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseclttjznbd2ivyk3bsyyqhsiy4yjr7npx35gzwcbn4wh3pssy5ew2\",\"orig_filename\":\"kame 1.m4a\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":111,\"is_custom_bpm\":false,\"musical_key\":\"A flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":476180660,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsec3g4qgsohrnorpqx3wnr6mljipmubdwjtriiajvbggzlrtk34o3e\"}}",
    "nonce": "0xf5b0dc5e435b2ac181ca11a89e44384973cb112c97a36f97ba4eedb35518bdd9",
    "signature": "0xf6df8bfbecc8f6ef0815fc4fe26282b8fdebe942d346d9333ff41bc6a1893cb73a4a0e2f1c34f8acae164f3a5e298830a23f21a00088989db4df4767dcc45e9f1b",
    "signer": "0x1a92e17851B135a180c1FAE8aABcB3614fd4D9Fa",
    "userId": "476180660"
  }
}