INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '338c4671de03036fdf492547b51b44972990a3dcf2cf5a83d334b492f85f240f', 
    'HGStFcjrr5MXNlUDzZITjVKyftAuxpphYHPcgA43ZxI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)