INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21950150b40b93d3b8aaf9e8a555b5fde8c953ee2da56a2992e6d3ca276868b9', 
    'buVrx3xttRZG79LDmNIqldUyXM0LUOJ2rf8qmRefh3o=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)