UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ZGEBWSAseBawmIvUnnvLYXqZidoa9ijUOH9mNknOmRc=' 
WHERE 
  key_id = '6af91becf1c47a275ab8dcfba25499ad3f29b1ad4d008c85135f7ace6f43139b' 
  AND (
    token = 'ZGEBWSAseBawmIvUnnvLYXqZidoa9ijUOH9mNknOmRc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )