{
  "manageEntity": {
    "action": "Create",
    "entityId": "664240519",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":664240519,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Trap\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Defiant\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"150,bass,trap,leftfieldbass,sounddesign,wonky\",\"title\":\"MUCKRAKER'S RETURN (IM BACK)\",\"duration\":192,\"audio_upload_id\":\"74542ea4e1f9ec25043a93bf8442899a\",\"track_cid\":\"baeaaaiqsecwnalbrep572ejtahc7k53pcufynr5ykk7nahdcbucupfbxd3qsm\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsec27lnqvoae7w6qa5ulyfxnfaeqidjthh4k4rrub6l7d4syrklcfm\",\"orig_filename\":\"IM BACK (final) - 12:19:25.mp3\",\"is_downloadable\":true,\"is_original_available\":true,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":140,\"is_custom_bpm\":false,\"musical_key\":\"C minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":134623867,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedpql6hf3him3uh2zdvm6idruvf3b2bxjm4m5adbmrh4bufk77bve\"}}",
    "nonce": "0x91dcfd1f7974b5e5b22fa23d2f6fdd835996959e5d00de1e48482a0b868ef1cc",
    "signature": "0xaa022c4effd674d03e6468f13f2a8041072c694ead94d330f3d972c19a62927a39ee82bdc287bbbaa61a1d1c35b7b369d140e235cfb6a88771f60c34b78182bc1c",
    "signer": "0x451d1Fcc610ac6c427d570E73Cb3641Acfa23b6b",
    "userId": "134623867"
  }
}