INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4821c5676aac031aea81b9b513e71fac14e9124074def4ccc943ce51762a3370', 
    'n27ZddCJzVbkB03bAA9o3eUvnSmrgfOgE0FUhn84CRU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00019

Result

int(1)