public async Task DeleteAccount(string username, Guid profileId, CancellationToken cancellationToken)
{
Ensure.String.IsNotNullOrWhiteSpace(username, nameof(username));
Ensure.Guid.IsNotEmpty(profileId, nameof(profileId));
await _photoCommand.DeletePhotos(profileId, cancellationToken).ConfigureAwait(false);
await _profileCommand.DeleteProfile(profileId, cancellationToken).ConfigureAwait(false);
var account = new Account(username);
await _accountStore.DeleteAccount(account.Provider, account.Subject, cancellationToken).ConfigureAwait(false);
await _userStore.DeleteUser(username, cancellationToken).ConfigureAwait(false);
_cache.RemoveAccount(username);
}