INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3a3ab7ffbab8481f19283656cea8c608a6a7818bea30449f487965024258efe1', 
    'MeRj6Ho5BNuGS0K1rqbEF0oabqaUudffj8//XGDrWC0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00045

Result

int(1)