INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b4c8af7aa4826b94f72db4510827c41da23b9b4f1f69bdc8c3731feedad3be94', 
    'SfsxotEBXkzNz2Iw+EgwCuNRMhknAKkjaMMyDp9bSVI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)