{
  "manageEntity": {
    "action": "Create",
    "entityId": "1568295854",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1568295854,\"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": "0x11ff69efd770ef6633f88b2f9597f8f8a94e4f6e3edf5dd3b66a10ced5421f50",
    "signature": "0xd27d6bcb36bea1457b27eddd4719667565ef1d1fcae4f2e2f6be92fba60319607987befcbc8e5ae35fc4499ecdf566b71e42ef08bfea3299ce55849077ecec071c",
    "signer": "0x15603D478D9A230d0B82A37b716ED8C194DE4daD",
    "userId": "253360517"
  }
}