function updateAccountMetadata(
  cts: nkruntime.Context,
  logger: nkruntime.Logger,
  nk: nkruntime.Nakama,
  payload: string
) {
  try {
    const metadataToUpdate = JSON.parse(payload);
    const userId = cts.userId;

    logger.debug("metadata: ", metadataToUpdate);
    // nk.accountUpdateId(
    //   userId,
    //   undefined,
    //   undefined,
    //   undefined,
    //   undefined,
    //   undefined,
    //   undefined,
    //   metadataToUpdate
    // );

    const user = nk.accountGetId(userId);
    const meta = user.user.metadata;

    Object.keys(metadataToUpdate).map((key) => {
      meta[key] = metadataToUpdate[key];
    });
    nk.multiUpdate(
      [
        {
          userId: userId,
          metadata: meta,
        },
      ],
      [],
      [],
      false
    );

    const updatedUser = nk.usersGetId([userId]);
    return JSON.stringify({
      userId: updatedUser[0].userId,
      meta: updatedUser[0].metadata,
    });
  } catch (error) {
    logger.error("Failed to update account.", error);
    return JSON.stringify({
      message: "Failed to update account.",
      error: "error",
      code: nkruntime.Codes.INTERNAL,
    });
  }
}