INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '688e1a68c566e2453ff8815fa4d8732afc41c32300a19e32f351a9c7f2c3e544', 
    'E7DkK44oV0JefdlZwGp30KweYfn4LtKBvTvpsJvxVhQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)