INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '89515acffbcc3da842f3784fa39428550333a5e2e7220850c571712f1cd5ef2a', 
    '3StXeWx+waWmOu1TBhseiwvUJH4mjvQRzfalK1CMmtA=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)