UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z6FZLkM/+p4APFDGVlghY5VFS0HHaUi/A4U8ZvwajjQ=' 
WHERE 
  key_id = '50da3d58e3da92af7591e3a44eb793ef1dd542f811faec18942883f0e7b07100' 
  AND (
    token = 'z6FZLkM/+p4APFDGVlghY5VFS0HHaUi/A4U8ZvwajjQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )