{
  "manageEntity": {
    "action": "Create",
    "entityId": "215176869",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":215176869,\"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": "0x850ed947176c93ca60a99892a28759ad78bf20524ed2584023d12c0c2f50267e",
    "signature": "0x8b2890b18dd8ffc76d1ff3a7bee8a30b3705d99e12a1a9e4c60b1b879224e6f033125563ca05558456470d59c103dea199efe5468bd00057173291365ea1cf411b",
    "signer": "0xf9B2e6c4AD8D7302B8CD57332e90D0C18d7C1522",
    "userId": "552421234"
  }
}