INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'd21b6ea019be9ced62faeb806ae31081e112616facfb27e5709446f22ee384bb', 
    'eWZHxUyERDoEOfbvC7Czac1tl0gNxMfUeeoZYccDPYU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)