UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e5As2fFMgbAIVQ71SsHPR6zzYpSJ5IwgHcEMWnfSuko=' 
WHERE 
  key_id = '993b44a0cef50f8def90db604774b903a3cdb83df7dc769ac8122c266eed10b8' 
  AND (
    token = 'e5As2fFMgbAIVQ71SsHPR6zzYpSJ5IwgHcEMWnfSuko=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )