INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b51c5fa16380a544a1f16a224734112e31ba24b53e9afe4912b48efd7ac421a6', 
    'PXbPpJCTHOVM0k95tw75JJbfPwn96DP/FpPQsrs9Wns=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)