{
  "manageEntity": {
    "action": "Create",
    "entityId": "220480147",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":220480147,\"description\":\"\",\"playlist_name\":\"New playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xac8daba63d613d4beb83e2406110ca6ea5474e9ec67988d15fb61179a7f7f5d0",
    "signature": "0x3893f831cc068cbfe250823b5eb8bd5fb206764fa3c4ef2f549d3980a0b2a6a44817e2ca9cd8c4e95c2303406cce204f76eb36d553d82c9be4b2757285e7a9221b",
    "signer": "0x18a7B3405E81900d8aF72d98D5f2C54e2C988f9b",
    "userId": "42634173"
  }
}