Could not get data from POSTMAN

Hi all, I connect to mydevices by postman, I have get the token successfully, but when get data, it also return status: success: true, although it has data. I don’t know how to fix it.
To get token: I’m using this
POST: https://accounts.mydevices.com/auth/realms/cayenne/protocol/openid-connect/token
Content-Type: application/x-www-form-urlencoded
Body
grant_type:password
client_id:537a28d8-521c-4b5e-aac0-c23fae779…
client_secret: 7b428aed-3f51-4fd2-bb9…
username: *****
password: ******,
It return response with token,
I have try https://auth.mydevices.com/oauth/token, but it 404 Not found
I get data by using:

https://platform.mydevices.com/v1.1/things/71d048d0-d246-11e9-ba7c-71****f5ba423/cmd
Header:
Authorization:Bearer eyJhbGciOiJSUzI1NiIsInR5cC…,
Body:
{
“channel”: 1,
“value”: 1
}

but it returns

{
“success”: true
},

please help me

have a look at this topic How to access Cayenne API using Insomnia, Node-red and Thunkable