INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3a21f525f4625f189fdeb79f6edeb73b853cc8b61d971a766c9f48b44d5ea7b1', 
    'Hm3LZymMmty83kLISslE1tU5AP6KzUEzIUO/lQYwh0I=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)