{
  "manageEntity": {
    "action": "Create",
    "entityId": "1820861386",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1820861386,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Metal\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"9 Lives\",\"duration\":134,\"audio_upload_id\":\"c825a61cc819ae2df1206ad92d758c4a\",\"track_cid\":\"baeaaaiqseat4yfmqd6l6obp7gtadp5ffxu4few6po6x35eta3u45woxlcoe7u\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebiccwepr3635j3ui6vsx6wxnlf5bzf3yn5bnn7lncxtoqoxst7ke\",\"orig_filename\":\"4614-9-lives.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":117,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":332599791,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebvxy5qbhj264v6jtprg3bq5gi65sm6wxq5fvtaqfmegzfvnfxxue\"}}",
    "nonce": "0xd2798489941af071035e045368e998ab2de4601976efb4c7dae88a4f8c5c79d2",
    "signature": "0xae1d4f3dfa9d10388b712100c1b5cf5cc0888b4230334eb295050767b52cd01a24a52bf4424733c8630c148bfdeff42ed5c64933639dc416f3e556a6fa8ae92d1b",
    "signer": "0xbA0158bC98bfcd8D47f1ff0eC67bE72A83C479FA",
    "userId": "332599791"
  }
}