{
  "manageEntity": {
    "action": "Create",
    "entityId": "869623281",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":869623281,\"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,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"SOMBR - BACK TO FRIENDS (MAYKO RENDER)\",\"duration\":286,\"audio_upload_id\":\"1bebd36d159057dfd67815f2224b71d9\",\"track_cid\":\"baeaaaiqsedqoevueswn2i6mbalvesrz7fl42t35izmdglab7liasqenrkceoq\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedeckp6q2ywt2badrimbst67oehifqkfjgoks7tqf4vyt44auyxtk\",\"orig_filename\":\"SOMBR - BACK TO FRIENDS (MAYKO RENDER (final master).wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":112,\"is_custom_bpm\":false,\"musical_key\":\"C major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":20512,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecyqrmjnzruvd44iijv7vshna2gmw2boyr5srpwn7aqfpwbbqc7kg\"}}",
    "nonce": "0xaa2fecb2919ad872dd02a6841ec9eab818492f213f2eae1e15fee437bde3cd1a",
    "signature": "0x9692e1a3505880a81c5ad34f311a029b8710c73c3031e427baa2681f75689a9e3b3c1e451187a953199226e95be3d5ccf52160f1d602faf9955be51d01b9da511b",
    "signer": "0x4C2058d82e3fD56848dB29d3a449e15DF17a5D5a",
    "userId": "20512"
  }
}