INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8c876c51812ff87f7b56c51a9fdb9c15f991a059697978b89acf6bb8b46cb269', 
    'pl6X7wfJw0Elx50DmIlTyWviy4kCt0QJnzr8E6rwLrs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00025

Result

int(1)