{
  "manageEntity": {
    "action": "Create",
    "entityId": "490175857",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":490175857,\"description\":\"This tune was released by Britney Spears in 1998. Performed here by me on my Yamaha PSR-SX900 arranger keyboard. Can you \\\"Name That Tune\\\"?\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Gritty\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"britneyspears\",\"title\":\"Name That Tune #608 by Britney Spears \",\"duration\":150,\"audio_upload_id\":\"300f341c45f3c6bb4bf21cc0c91b20fe\",\"track_cid\":\"baeaaaiqsedoqnasc62uwprmyyxteslstldnnuho2w4gbpkjzfk3bov4crl52a\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedfp5wqoumittrwxtolb5clgvfgxjywzjdhzyelvxzral6vyiaoau\",\"orig_filename\":\"Name That Tune #608.wav\",\"is_downloadable\":true,\"is_original_available\":true,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":93,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":231243,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseckepbfhj4plfdhkkcn47qi3un22mhc7ftkeoyulpqmo6fnurcnuy\"}}",
    "nonce": "0xccbf4048360c8972948e86b2b0a6c9b9d1431a15b32436e7660e55d32fd6f610",
    "signature": "0xf33baacad6c2b713312f812a55e385c58f9b42c8d4eefb441afbae29dc7150545fb3b31d824ff5fe051f4f79af077e86feca5c399728c3953d58389226b25ba51c",
    "signer": "0x1481F49fD2f6524D8CDC0089b13bbd2e6E9106F4",
    "userId": "231243"
  }
}