INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '2106021a5cd3e01b255d6c2a84678f4e8ff92cca7db46c2bda03199b1da7c797', 
    'My+Ur43p0y91w13juKzBoeEdyx3KJ1WTUWGjjGbGJE0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)