INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3999de564ea6bd7593ff289b1b2eb517cb308728e4f86137cdca87686aece7f5', 
    'N8PgWLz3wh15VMYjfudIrxRZeZXrOGW5bG3FpeEjnDc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)