INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '14b3d2883564f756c6944506ccb1a4a6662a5ca898d645cdd303404e855430f1', 
    't5dz8GJ+7WDHvXPt6S3C5D9qF0jhRsuUTNuZO9B4GG0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)