{
  "manageEntity": {
    "action": "Create",
    "entityId": "1681957170",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1681957170,\"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": "0xce9cc5b4e4c91e3ecb39a56c43d87939982f68a0972faad28f0d368a60fd322d",
    "signature": "0xd243d235ff185f9940cd30d4ee91cc7e367f175c6f9a36e5ba5db83ba684f16804f9dd68c3a99b797f5f1d9395222f398668d94832c524e2f3d6831cca1447d61c",
    "signer": "0xE329c5486026afe89fF405465E2DF97104528f67",
    "userId": "453007821"
  }
}