curl --request GET \
  --url https://api.folk.app/v1/groups/{groupId}/{entityType}/{dealId} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "obj_183ed5cc-3182-45de-84d1-d520f2604810",
    "name": "Project Alpha",
    "companies": [
      {
        "id": "com_92346499-30bf-4278-ae8e-4aa3ae2ace2c",
        "name": "Tech Corp"
      }
    ],
    "people": [
      {
        "id": "per_5fa60242-0756-4e31-8cca-30c2c5ff1ac2",
        "fullName": "John Doe"
      }
    ],
    "customFieldValues": {
      "Status": "Active",
      "Deal value": "42000",
      "Close date": "2021-01-01",
      "Assignee": [
        {
          "id": "usr_c3606e3b-0a92-4849-90e5-88a8d3f388d6",
          "fullName": "Jane Doe",
          "email": "jane@example.com"
        }
      ]
    }
  }
}