UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N8wUALDvqdfA1ngkyfxfuEqYXwn051F/lDIgUWjnL8g=' 
WHERE 
  key_id = '3b4be98548e91e48e1f713821fcae177e5a48989301812163af78ae374697090' 
  AND (
    token = 'N8wUALDvqdfA1ngkyfxfuEqYXwn051F/lDIgUWjnL8g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )