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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _prepare_consume_payload(did, service_agreement_id, service_definition_id, signature, consumer_address):
 """Prepare a payload to send to `Brizo`. :param did: DID, str :param service_agreement_id: Service Agreement Id, str :param service_definition_id: identifier of the service inside the asset DDO, str service in the DDO (DID document) :param signature: the signed agreement message hash which includes conditions and their parameters values and other details of the agreement, str :param consumer_address: ethereum address of the consumer signing this agreement, hex-str :return: dict """

        return json.dumps({
            'did': did,
            'serviceAgreementId': service_agreement_id,
            ServiceAgreement.SERVICE_DEFINITION_ID: service_definition_id,
            'signature': signature,
            'consumerAddress': consumer_address
        })