UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '//bgp1TX3qANBgYwdQkrjS+PzhygMjq9YjSvpL8OAXM=' 
WHERE 
  key_id = 'b6b4895190a7f64bb3c7fac18e021cc56f94450095d98b1ceff189e927bacd75' 
  AND (
    token = '//bgp1TX3qANBgYwdQkrjS+PzhygMjq9YjSvpL8OAXM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )