INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3351cd4c31aa64b262da08e9b0b35b5c4014e181dc78aa513d8722a8f025d862', 
    '52zNb5cZgGSVnm+UPBRRwXJMQa8bQrLew3s3PcthwZI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)