{
  "manageEntity": {
    "action": "Update",
    "entityId": "389082234",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"UTOPIA\",\"is_private\":true,\"license\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"playlist_contents\":[{\"timestamp\":1780906674,\"track_id\":43669552}],\"is_stream_gated\":false,\"stream_conditions\":null,\"is_scheduled_release\":false}}",
    "nonce": "0x55a12f388cd45334953f965ae5f7e907b323dc35cc454fc3657f5fdadce480f8",
    "signature": "0xf8053c5485c43ed267b0f8196169ca57bddeb2e1579174c15d00b77751fdb5456cddd1601ece57913fea43c1ea5805c0dde8a8fa33e37d076610c1059eee83b31c",
    "signer": "0xeDae8fbdB2a56d77Fc35eaC72D7c338eba53388b",
    "userId": "1474453"
  }
}