INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '50b8934807ae049601837b84afe07d2869740a498907d6be451c36e53769abaa', 
    'R4gNUXVljSo5XBmZI0yjnRr1eJpIjjmJdTrZdZZYFi8=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)