{
  "manageEntity": {
    "action": "Create",
    "entityId": "263237054",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":263237054,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Alternative\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Letter To My Dreams\",\"duration\":180,\"audio_upload_id\":\"604a4a86cb6fe59d38f2c3c0e9928352\",\"track_cid\":\"baeaaaiqsebprqpuxpxl7bidxw5uemovzqu53b737o5fw2slcn2kxzitay4z4w\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecylq4g5hwma5dcdxbkpeohdhuwm27aq467zrvizesurirs3vccnm\",\"orig_filename\":\"Letter To My Dreams.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":80,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":592353919,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecvr2a6ss46esvohpyvgosb7qt24lcdvy7dxbnldgkior6i7lbm72\"}}",
    "nonce": "0x20625b3b59dcab43da4d6257f85265a572dd7acfc38d5f1d6b88ccb79cd9095e",
    "signature": "0x3292b024b50a73ff779daa234ecc730a9291399fdbbc015d49c386ae48d3a17721152858cf5e00800ea28fa4a268d26a3b32c362fe9c0518d8f3870d29dfb2251b",
    "signer": "0xC657bd3E50e9082279d5D1a5f1B85d0c985b3523",
    "userId": "592353919"
  }
}