{
  "manageEntity": {
    "action": "Create",
    "entityId": "1644465537",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1644465537,\"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": "0xd0c822f2df9322439abb9a0fdccee2cbd5782d0fa112518d2dbbd21a78c44394",
    "signature": "0x310a874c5e9909c27e03cd45591e7055dc8404c0d9dd3ec27e7a5f106463d47f03146573d1a55e3a9fe763b1eaa3505a4217de2d927869f37478c098eaac5a681c",
    "signer": "0x61F949f996483EB7EAf30b9bDA9010A86bAe9BeF",
    "userId": "733158140"
  }
}