INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '784347f2f41ad7ab8aee2653d0fbacddc1020e8804f34936d6e9d9264ca738e4', 
    'l8aiHUgMT+KuILvMwKAM5u6FYAeI0yjd6TgNzG7dVO4=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)