UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L5l9RQ0TvENp4ZuBy0SsiMtDjiEaOBu5W2TAgYI2JuU=' 
WHERE 
  key_id = '4c902166e6d2798c2ca2027feb3e746685b01886f557f17a27d7e0aad9b8f800' 
  AND (
    token = 'L5l9RQ0TvENp4ZuBy0SsiMtDjiEaOBu5W2TAgYI2JuU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )