{
  "manageEntity": {
    "action": "Create",
    "entityId": "439859344",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":439859344,\"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": "0xb97848406fbe620f0c92b62549e4b486dcaf7773bc2597c3a9ed4fc0158cd163",
    "signature": "0x51e93a41805366c580b2da53d96ddd54db7308347d29d295e56a56203037bc3454c4e4e76e68e49c1b7274a884050599e879c91daaaeb627ce73718d2a563bb51b",
    "signer": "0xd70cC881fbB38d68490cf7A578B24F81B4d24fb4",
    "userId": "873212552"
  }
}