{
  "manageEntity": {
    "action": "Create",
    "entityId": "1422839646",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1422839646,\"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": "0x3a2c4aec71b47c5ab11f273b1e9c9f49fe05253add1d794c3ec72cf00428d189",
    "signature": "0xff221623ff4cf91a184ae5e26fe5e5f05bfd9ded6466560b9fc68850f2ecf6e23094127a0b79a71a80ddc9581fae0c13db0fe38aca0056040e7263470fb5ad361b",
    "signer": "0x71675b9d8F5F0a304D0a852517BE98992D120b9F",
    "userId": "404028185"
  }
}