INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51a303eb1e072ffee26264596eee6e29edbdc4890a44da6903d951c0f402cecb', 
    'SJKUC9Mo205Yqaa02mKluuRcaiOw8vJSrCZdjQWN7Do=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)