code: func (h *Handler) ImportAccountFromJSON(
  	tkn string, params *AccountParams, jsonBlob json.RawMessage,
  	jsonKeyStorePassword string) (*string, error) {
  	logger := h.logger.Add("method", "ImportAccountFromJSON")
  
  	if !h.token.Check(tkn) {
  		logger.Warn("access denied")
  		return nil, ErrAccessDenied
  	}
  
  	account := params.prefilledAccount()
  
  	makeECDSAFunc := h.jsonPrivateKeyToECDSA(
  		jsonBlob, jsonKeyStorePassword)
  
  	id, err := h.fillAndSaveAccount(
  		logger, account, makeECDSAFunc, true)
  	if err != nil {
  		return nil, err
  	}
  
  	return &id, nil
  }
docs: // ImportAccountFromJSON imports private key from JSON blob with password,
  // creates account and initiates JobAccountUpdateBalances job.