I ran a quick test using Postman and your provided params and I got a 200 response as expected. Although I cannot say why your attempts were failing, I can confirm the endpoint and the specific request you are sending will return a successful response code.
I ran a quick test using Postman and your provided params and I got a 200 response as expected. Although I cannot say why your attempts were failing, I can confirm the endpoint and the specific request you are sending will return a successful response code.