以json格式的数据上传到AWS控制台，结果转换成UTF-8字符串形式显示怎么解决？

这怎么解决？？？？？

#define publish_normaldata  "{"device id":%x%x,"Don't smoke": "No"}"

char normal_data[255]={0};

esp_base_mac_addr_get(mac);

    printf("device mac = %x:%x:%x:%x:%x:%xrn",mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);

sprintf(normal_data, publish_normaldata,mac[4],mac[5]);

sprintf(cPayload, "%s",normal_data);

paramsQOS1.payloadLen = strlen(cPayload);
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aws_iot_mqtt_publish(&client, TOPICB, TOPICB_LEN, ¶msQOS1);