UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ctBcS/wCaffjqpFR81LerzHs5aqcfh67fo8YcSqC63E=' 
WHERE 
  key_id = '6c3a28a838ddbfd01ed8d71e552894d5356a5cb884dbf971ec4ba60b24a0a513' 
  AND (
    token = 'ctBcS/wCaffjqpFR81LerzHs5aqcfh67fo8YcSqC63E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )