Obter dados do usuário

{
  "success": true,
  "data": {
    "id": "reg_abc123",
    "name": "João Silva",
    "email": "joao@empresa.com",
    "balance": 15000,
    "status": "active",
    "pixKey": "joao@empresa.com",
    "pixKeyType": "EMAIL",
    "plan": {
      "name": "FREE",
      "transactionFee": 50,
      "transactionFeeInReais": "0.50",
      "monthlyFee": 0
    },
    "planDates": {
      "endDate": null,
      "daysRemaining": null,
      "autoRenew": true
    },
    "limits": {
      "perTransaction": 100000
    },
    "createdAt": "2025-05-01T12:00:00.000Z"
  }
}