How to modify DHCP range domain-name-server option? [ Edited ]

[#1]

I am using the PUT method with this URL 

/range/ZG5zLmRoY3BfcmFuZ2UkMTAuMTI5LjEzMi4xLzEwLjEyOS4xMzIuMjUwLy8vNi85OA:10.129.132.1/10.129.132.250/<name_of_the_network_view>

with this JSON body

{
   "options":[
      {
         "values":[
            {
               "value":"8.8.8.8",
               "name":"domain-name-servers",
               "num":6,
               "use_option":true,
               "vendor_class":"DHCP"
            }
         ]
      }
   ]
}

and I am getting this error

{
    "Error": "AdmConProtoError: Required field missing: value",
    "code": "Client.Ibap.Proto",
    "text": "Required field missing: value"
}

The URL should be correct because I can use this simple body to change the name/comment for the range

{
    "name": "Difan-testing-range-1"
}

Could you tell me what I did wrong? Thanks!

[#2]

Any updates, please? Would appreciate your help very much!

[#3]

Hi Difan,

The request body does not need a 'values' array inside the 'options' array. In your case the request body should be:

"options": [
        {
            "value": "8.8.8.8",
            "name": "domain-name-servers",
            "num": 6,
            "use_option": true,
            "vendor_class": "DHCP"
        }
    ]

[#4]

Hi Shukran, your request body works, and thanks for that. However, after I applied it, my "default route" option changed... It was configured as "inherited: false" with this value

                    {
                        "name": "routers",
                        "num": 3,
                        "use_option": true,
                        "value": "10.129.132.254",
                        "vendor_class": "DHCP"
                    }

After applying the provided body data, it became "inherited: true" with this data

                    {
                        "name": "routers",
                        "num": 3,
                        "use_option": false,
                        "value": "10.129.57.254",
                        "vendor_class": "DHCP"
                    }

Here is the request body I applied:

{
    "options": [
        {
            "name": "domain-name-servers",
            "num": 6,
            "value": "8.8.8.8",
            "use_option": false,
            "vendor_class": "DHCP"
        }
    ]
}

I didn't touch this default router option 3 at all... Do you know why this is the case? Thanks!