Get Sandbox Details

{
  "sandbox": {
    "id": "string",
    "name": "string",
    "expiredAt": "2019-08-24T14:15:22Z",
    "expiresAt": "2019-08-24T14:15:22Z",
    "createdAt": "2019-08-24T14:15:22Z",
    "projectId": "string"
  },
  "connectDetails": {
    "gatewayAddresses": [
      {
        "address": "string",
        "port": 0,
        "name": "string",
        "preferredProviders": [
          "CHINA_TELECOM"
        ],
        "gatewayType": "KCP"
      }
    ],
    "certificateHashBase64": "string",
    "endUserToken": "string",
    "roomId": "string"
  }
}