[keycloak-user] the admin rest api for realm import is not importing realm

As mentioned in docs: https://www.keycloak.org/docs-api/4.4/rest-api/index.html#_realms_admin_r... I have created a post request via postman and the response is 200 OK, but when I go and check on the admin console, new realm is not visible. Moreover, when I perform the same operation via an invalid token, then also the response is 200 OK. Am I missing something here? Attached screenshot of postman request. (In the body I have copy pasted entire contents of realm json file that was exported from another server)