INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a73010af6a69b02b84b8104b0cebe66818ce54ce3573fe521954716651dcdd21', 
    'Q+FdR5rrgf3jXmmDGkkmJzhBnx2qvj33EW6JfhAgUIs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)