Starting with individual JSON objects...
json_1: {"country": "US", "device": "mobile", "type": "premium"}
json_2: {"country": "US", "device": "mobile", "type": "premium"}
json_3: {"country": "US", "device": "mobile", "type": "premium"}
json_4: {"country": "US", "device": "mobile", "type": "premium"}
json_5: {"country": "EU", "device": "desktop", "type": "free"}
json_6: {"country": "EU", "device": "desktop", "type": "free"}
json_7: {"country": "CA", "device": "tablet", "type": "standard"}
json_8: {"country": "UK", "device": "mobile", "type": "free"}