INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '303121e726cee3e1cf25150936559dfc8ec9996369b539e2a30650d422ae747c', 
    'cFsAabwCZZVC/RKaUTKeYh8HSgRWZkjF7+ZrbwOd1Z8=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)