curl --request GET \
  --url https://app.pennylane.com/api/external/v2/ledger_entry_lines/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": 42,
  "debit": "100.00",
  "credit": "0.00",
  "label": "Employees - Jean Dupont / Salary May 2023",
  "ledger_account": {
    "id": 987,
    "url": "https://app.pennylane.com/api/external/v2/ledger_accounts/42"
  },
  "journal": {
    "id": 123,
    "url": "https://app.pennylane.com/api/external/v2/journals/42"
  },
  "date": "2023-08-30",
  "ledger_entry": {
    "id": 123001
  },
  "lettered_ledger_entry_lines": {
    "ids": [
      42,
      1271004
    ],
    "url": "https://app.pennylane.com/api/external/v2/ledger_entry_lines/42/lettered_ledger_entry_lines"
  },
  "created_at": "2023-08-30T10:08:08.146343Z",
  "updated_at": "2023-08-30T10:08:08.146343Z"
}