# Payment transaction

When the swap transaction is ready to be sent to private miners, the user will need to sign the transaction and include payment for the service.

There will be an option for those who stake $HKLS tokens to receive free services. To apply, they will need to sign a simple message transaction, which is not a payment. This transaction is necessary to verify that the user is eligible for the free services.

<figure><img src="/files/bqqMFjyBuFrBN66LMjQ7" alt=""><figcaption></figcaption></figure>

If a user has not staked tokens for free swaps via Anti-Sandwich, they will need to pay for the services.

There will be an option to pay using either the native network currency or stablecoins. After signing the payment transaction, both the swap transaction and the payment transaction will be sent as a bundle to private mining.

<figure><img src="/files/dOjQ4OoMHgJCXYU4zr8t" alt=""><figcaption></figcaption></figure>

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