curl -X POST "https://api.joinformal.com/core.v1.GroupService/CreateUserGroupLink" \
  -H "X-API-KEY: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "example": "value"
  }'

{
  "userGroupLink": {
    "id": "<string>",
    "group": {
      "id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "dsyncGroupId": "<string>",
      "terminationProtection": true,
      "createdAt": "2023-01-15T01:30:15.01Z",
      "updatedAt": "2023-01-15T01:30:15.01Z"
    },
    "user": {
      "id": "<string>",
      "dbUsername": "<string>",
      "type": "machine",
      "terminationProtection": true,
      "expireAt": "2023-01-15T01:30:15.01Z",
      "createdAt": "2023-01-15T01:30:15.01Z",
      "updatedAt": "2023-01-15T01:30:15.01Z",
      "human": {
        "firstName": "<string>",
        "lastName": "<string>",
        "email": "jsmith@example.com"
      }
    },
    "terminationProtection": true,
    "createdAt": "2023-01-15T01:30:15.01Z",
    "updatedAt": "2023-01-15T01:30:15.01Z"
  }
}