UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tMaPGMCAGchERrQlewiRRudRofkhCY5vTYbRb20VBgc=' 
WHERE 
  key_id = '57c157d171145ac7ce8dfd95ea5065cc23d676e9059414240bbec9564b709254' 
  AND (
    token = 'tMaPGMCAGchERrQlewiRRudRofkhCY5vTYbRb20VBgc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )