Cleaned users: [user1]

Resulting Database:
GroupByID:
    "22222": '"not-a-valid-json"'
    "33333": '"not-a-valid-json"'
    "99999": '"not-a-valid-json"'
GroupByName:
    commongroup: '"not-a-valid-json"'
    group2: '"not-a-valid-json"'
    group3: '"not-a-valid-json"'
GroupToUsers:
    "22222": '"not-a-valid-json"'
    "33333": '"not-a-valid-json"'
    "99999": '"not-a-valid-json"'
UserByID:
    "2222": '"not-a-valid-json"'
    "3333": '"not-a-valid-json"'
UserByName:
    user2: '"not-a-valid-json"'
    user3: '"not-a-valid-json"'
UserToBroker: {}
UserToGroups:
    "2222": '"not-a-valid-json"'
    "3333": '"not-a-valid-json"'
