curl --request GET \
  --url https://api.twine.se/v1/org/salary-transactions/{salary_transaction_id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "018eae56-8f9d-7ca0-bea3-17f3db6cf75b",
    "org_id": "018eae56-8f9d-7ca0-bea3-17f3db6cf75b",
    "employee_id": "018eae56-8f9d-7ca0-bea3-17f3db6cf75b",
    "inserted_at": "2021-06-01T12:00:00Z",
    "mappings": [
      {
        "external_id": "SAL-1024",
        "system_integration_id": "018eae56-8f9d-7ca0-bea3-17f3db6cf75b",
        "id": "018eae56-8f9d-7ca0-bea3-17f3db6cf75b",
        "status": "active",
        "status_updated_at": "2023-11-07T05:31:56Z"
      }
    ],
    "properties": {
      "amount": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "cost_center": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "currency": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "custom_properties": {},
      "department_id": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "description": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "period_end": [
        {
          "valid_from": "2021-06-01",
          "value": "2021-06-01T12:00:00Z"
        }
      ],
      "period_start": [
        {
          "valid_from": "2021-06-01",
          "value": "2021-06-01T12:00:00Z"
        }
      ],
      "project": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "quantity": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "source_external_id": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "total": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ],
      "transaction_date": [
        {
          "valid_from": "2021-06-01",
          "value": "2021-06-01T12:00:00Z"
        }
      ],
      "transaction_type": [
        {
          "valid_from": "2021-06-01",
          "value": null
        }
      ]
    },
    "transaction_date": "2021-06-01",
    "updated_at": "2021-06-01T12:00:00Z"
  }
}