[{"mac_prefix":"2C:7A:F4:70","mask_bits":28,"block_type":"MA-M","organization":"Jinan LinkCtrl IoT Co., Ltd","address":"li cheng qu shi ji da dao 11977 hao zhong xin jin xiu tian di dong yuan yi qu 21 hao lou 726 ji nan shi shandong CN 250031","country":"CN"}]