PriceUpdated (bytes15 ticker, uint48 timestamp, uint64 medianPrice, uint16 variance)
[topic 0]:0x196c0322e8655d80b2e5312968d1c820fd0c38deb5a9b9dd6dbb89329ca04ba5
[topic 1]:0x555344433a310000000000000000000000000000000000000000000000000000
[topic 2]:0x0000000000000000000000000000000000000000000000000000000066fac94e
0x000000000000000000000000000000000000000000000000002386878ec3876e0000000000000000000000000000000000000000000000000000000000000000