INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6e5421ab30351479778196d1d56f012414f11af640f4cf1d07c0b8a33b2752d2', 
    'k8LyYaEUzfeeAp2a55JXvBb6C0p7mFgDHfGEEWFzNtI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00047

Result

int(1)