{
  "manageEntity": {
    "action": "Create",
    "entityId": "1125854120",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1125854120,\"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": "0xf3dd9c7e03539eaee50c5d973661d643f52f4a1280a288837e498765a4c9cb7b",
    "signature": "0x3ca9ccd99b86119c4a919dc139a922629392b776c7cb21aff0886c3f845dfefb28f1cf67828914e5196321e8193d1dc784b8a1c39f510fbf6e8d8adf18f3e4421b",
    "signer": "0x19fb45DC2c238C8e4abe5659E910fFa787f2eD91",
    "userId": "156440649"
  }
}