Possible values: [UserV1, UserDeleteV1, PartnerV1, PartnerDeleteV1, AssetV1, AssetDeleteV1, AssetExifV1, PartnerAssetV1, PartnerAssetBackfillV1, PartnerAssetDeleteV1, PartnerAssetExifV1, PartnerAssetExifBackfillV1, AlbumV1, AlbumDeleteV1, AlbumUserV1, AlbumUserBackfillV1, AlbumUserDeleteV1, SyncAckV1]