{
  "manageEntity": {
    "action": "Create",
    "entityId": "1255197945",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1255197945,\"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": "0x1966519bbf7ba1012e94ad0309d3f868c6340907029f43c36537fe031b984afc",
    "signature": "0x0424e90da7b9a7d802a8d2963a2733dfcc4f419607935fb1e4e690b3bb1dc82077272c29292a2145e8d4ba5b247f4b9333b4f51158d5e8d15e75b14158edc6ae1b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}