SIM Data Recharge Workflow

1. Create an order using POST /api/v1/orders/recharge and sign the request with X-Signature. Submit a unique trackId, and store the returned orderId and each subOrderId.
2. Use only items of type SIM_RECHARGE. Top up a maximum of 50 SIM cards per order.
3. The order will be processed, and the result will be returned immediately.