INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21b76ee7482873a568a65f9a7a58bf0026a90471b596c56d765596b5ef14a7cf', 
    'HSDUIjrLMttL2mI8eia3vovd30knrR0D1o7l6hGkq+M=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)