Issues while passing arguments in Semaphore Task API

[ApoorvaBhargav]

Hi Team, I have a requirement to call Semaphore task API to run with arguments with dynamic value, similar to passing extravars in ansible but somehow the json always breaks when passing arguments, my version is 2.15 and here's a sample json with arguments. Also note that API works fine without arguments.
curl -v -X POST http://hostname.ip.tdk.dk:30080/api/project/4/tasks -H "Content-Type: application/json" -H "Authorization: Bearer xxxxmy tokenhere" -d '{
"template_id": 17,
"limit": "somehost.ip.tdk.dk",
"arguments": ["--extra-vars", "{\"HostName\":\"somehost.ip.tdk.dk\"}"],
"debug": false,
"dry_run": false,
"reason": "Triggering os validation from API" }'