INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51cff590d501d156653716a36b55c71fa1225c3f278ddf850683d75bd9152a2b', 
    '4Cfrje4pi6cE7PIHpRdRMZ5/KbdyZSfjOQZg9TkWeVc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)