UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DoUg+8BNxkikCIkIw8cdQo59NyFE77yuzHvsBeqFysg=' 
WHERE 
  key_id = '693ce27b8d4bac26d084f59f68da883560270aeff88200b071936cc1bd015495' 
  AND (
    token = 'DoUg+8BNxkikCIkIw8cdQo59NyFE77yuzHvsBeqFysg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )