{
  "manageEntity": {
    "action": "Create",
    "entityId": "2128308701",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2128308701,\"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": "0xf37e56a49ec1e21275b0b1e7400d626163ce37755bdc67ce9d9797a3542d8610",
    "signature": "0x90a079eae5aea06c48ed4c02b7e89d7a152cfd42f0634625e0224e4fb18803e124e591b699cda64e33a8420a40d7b8334f7d088c4ef9aec788a13485b08f912f1c",
    "signer": "0x3DdfB99173Ed7ff3A083C9C589582B230d37906E",
    "userId": "192527938"
  }
}