(timestamp1, {'a': False, 'b': False, 'c': False}),
(timestamp2, {'a': False, 'b': True, 'c': False}),
(timestamp3, {'a': False, 'b': False, 'c': False}),
(timestamp4, {'a': False, 'b': True, 'c': False}),
Looking for an efficient way to store history data