The bandwidth resources required to complete the transaction are debited from the balance of the provider's smart contract.
In case the smart contract does not have the required number of reserved tokens, this smart contract generates a similar request for the next smart contract with which it has an agreement to allocate bandwidth resources, requests bandwidth resources from the next smart contract, indicating the account names and provider. In the absence of the necessary funds for the next smart contract, a similar request is generated for the next smart contract. The next specific smart contract is selected in accordance with the logic of the previous smart contract and their agreement on the allocation of resources. As soon as a smart contract with the available means to allocate bandwidth resources is detected in the request chain, this smart contract sends a confirmation message of