{
  "manageEntity": {
    "action": "Create",
    "entityId": "1448998376",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1448998376,\"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": "0xa18a5edff8fa28d043fc74ae4063967a6b8f1b5a6b693e81988b3be264e82572",
    "signature": "0xdf6c538fe2ebabe25aa7394f869f0612a4022af059ae67a08546166444603a984e7eb7ad585c9cf47752f5bf32ac8d8a692cf96a77c5d5dbe967815e5e4ad84d1c",
    "signer": "0xEDAf2D5D3b215D8E1c7a1bc0C7872fa76Ed1481f",
    "userId": "280209441"
  }
}