{
  "manageEntity": {
    "action": "Create",
    "entityId": "540388981",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":540388981,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Ambient\",\"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\":\"Quiet Between Rooms\",\"duration\":184,\"audio_upload_id\":\"b68bdc7e8818c7d9036f1b34587729e0\",\"track_cid\":\"baeaaaiqseaz7vjstjmkdb76zwnxpimkva2wkawigrptjlmpp4n6n2e46ylk66\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseckeubknsqtzdbd6yaxjs32h4kupglf5urjylcafexf2viaoiujpk\",\"orig_filename\":\"fd25b4a6-2c7b-41c3-bc86-51edb64d6e58.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":135,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":994273271,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseaevfwllebm2iccze6uvsdtya7vzhb4kpzfg4ttgywtbaj5dgocre\"}}",
    "nonce": "0x730ad24be2d411c7b6beaaad1a1aaef9da21b8d4e73d561f432d9cfbb7a42ea9",
    "signature": "0x3eea62faaceb4e534621d95a3d2e90afae9e152c04e087f802fbba63f8ff7bd6406705973c3755bbf842976905f77dc85dd47f9506d06d0d510b6b9e88d75a311c",
    "signer": "0xF5771F55BBFfE8bC7930954AdCC1BAD77452b5Ba",
    "userId": "994273271"
  }
}