UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iwzjiUqPFh1ud9uDpcJtcoyK6WDs5O2e37D8W7ZAFzQ=' 
WHERE 
  key_id = '847de76f8ec88ebbf6eb199c018c9eea5edecf12d028f9be969ae0bdc539ece4' 
  AND (
    token = 'iwzjiUqPFh1ud9uDpcJtcoyK6WDs5O2e37D8W7ZAFzQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )