INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8dff4cedf65797f1dee8c41acd144096f6a34dde5852c31687f0d8d02d43915a', 
    'NNfTFH8KlLmhS2EMGBGUgHjZSZ4eHD5JMaoWBeaBEWk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00032

Result

int(1)