Why the Rest API assigning default name to user when create?

[sergio_figueroa_escala24x7_com]

Hi, I'm trying to create an automated process that syncs the organization and users from our legacy software to JIRA and when I send a payload with information Jira is creating the account with the specified email but it uses a default name...

Can anyone help me out identifying what I'm doing wrong?

This is the payload structure I send on the POST request:

payload = json.dumps({ "emailAddress": mail, "displayName": name, "name": name })