UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VACnNrPTuDV40kXsQDnRBItMRFWgzbxb65voZ2QhCPY=' 
WHERE 
  key_id = '8c6fc4f2294521bb99cc0633d98ad91cea8bb57c715b986aa1c6a66292d52428' 
  AND (
    token = 'VACnNrPTuDV40kXsQDnRBItMRFWgzbxb65voZ2QhCPY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )