INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21f4892ef329457bfb1624b47378238e8748d3ba5dfff744e72b67b36b30e436', 
    'kwb3gRnOA0yNhWZquzwTtVNaslK+zX8StonoUCAdgEI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)