Jira rest api to create test details(test step, test data, expected result) to a issue with issue type "test"

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REST

API

Jira

I have created a issue with issue type "test" using the Jira Rest API. Now I have to add the test details(test step, test data, expected result).
could you please help on how to add the test details(test step, test data, expected result) to a issue with issue type "test"

What I have tried:

I have used the below REST API and input to add a test step as mentioned in ZAPI. But I got 404 error

rest API:
rest/api/latest/teststep/[issueid]

json input:
{"step":"test step1","data":null,"result":"result 1"}