INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '421c063b1c0b30e33650a61ccb9834623330f9ea3bff85591e5ac2272edbda9d', 
    '82g4wZVSvnZadtyQ+WMW5tgxGhLnGATnBE07NH01010=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)