Creates an SSO user in the Chatwee database. This method should be called whenever a new user is created in the host service. The method returns the newly created user ID which is required for the SSO login method and for targeting the user that we want to start a conversation with.
|chatId||unique chat ID||string||yes||available in 'INTEGRATION' section of the Chatwee Dashboard|
|clientKey||client secret||string||yes||available in 'INTEGRATION' section of the Chatwee Dashboard|
|isAdmin||if user has admin role||(0,1)||no||-|
|avatar||user avatar||string||no||an absolute URL of the user avatar image|
|url||URL of the user profile||string||no||if set, clicking on the link will navigate to this URL|