{
  "manageEntity": {
    "action": "Create",
    "entityId": "681618760",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":681618760,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"CM_175_A Future That Breathes (能呼吸的未來 साँस लेता हुआ भविष्य)\",\"duration\":192,\"audio_upload_id\":\"1b4d75b84a6d037b9db9624357bcede1\",\"track_cid\":\"baeaaaiqseccaowwh7xqaa5yndx537ql2xax3ngfbs3iqztugutji546eer56g\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseclintbdfyhlqx3v6wsxrgfa454hdqjpm67durl3baojhiulqyxx6\",\"orig_filename\":\"CM_175_A Future That Breathes (能呼吸的未來 साँस लेता हुआ भविष्य).WAV\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":117,\"is_custom_bpm\":false,\"musical_key\":\"E flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":610888861,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsec4gn2htog2bq24cys5yeeph7foe5ngflvf53lkmvcjwqv54dqtvq\"}}",
    "nonce": "0xcb9720390b398b2648cb8df4dfe4050c62493e2fbde872148017f66bf4be276c",
    "signature": "0x76d5a8fd4e0af3e3159fb5f1667f7a5937611b31442898d69aa2873f503c175739d0b4845cc3b22e29a14c294513bb86d4aaa8d805b9844656f29204eae447441c",
    "signer": "0xf5BfE006B204417a4a7D6B64C2336EEE309eCc17",
    "userId": "610888861"
  }
}