{
  "manageEntity": {
    "action": "Create",
    "entityId": "321278756",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":321278756,\"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": "0x4ffbcabfb3b4a81529be0699cf6c93a16f904c684a59ade67c2cc65442f9bc6d",
    "signature": "0xff98f2eeb76ceedf291d43e34cb0b9dafeb606362e3a89a358300f0e7005c8fc4788b07723a3af91458c914e0ebdcd56f8549a338bec81661c5c138fa974af351b",
    "signer": "0xe62fb04C802261ED8A960eDA707cf5636AA369D7",
    "userId": "271471684"
  }
}