{
  "manageEntity": {
    "action": "Create",
    "entityId": "1031139131",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1031139131,\"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": "0x24189e1218c81b62ca111ca7feb40117755ad7af23054549aea07f068e024a77",
    "signature": "0xf0ae1c3b28c61552a6299e1d637fff2858c92def1f657719ec49a9158bacd84b1db32d6fee556ae4876e52f7e25fb7cdcfc97c4eaa9caaf2d396254b494ba46d1b",
    "signer": "0xB3CCCdE1D0E83236E61b43A0C53a57b049c88445",
    "userId": "700560752"
  }
}