UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QMkrF3V92Bts8UB52e5E5W0vI+Qw3HttuAVgFLtCB5U=' 
WHERE 
  key_id = '8a51c8efb5f2363c9f7784471e3023f9893d418aa431f59db16d336f297c6849' 
  AND (
    token = 'QMkrF3V92Bts8UB52e5E5W0vI+Qw3HttuAVgFLtCB5U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )