UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k0U4VGQGbUAEYvoJvw7HA0Gv1qI3RNzXoQz1RUCBmts=' 
WHERE 
  key_id = '91abb8f006b01bc85c4e785cd5fc99eb8f2299aa50a206e690c39525a4185697' 
  AND (
    token = 'k0U4VGQGbUAEYvoJvw7HA0Gv1qI3RNzXoQz1RUCBmts=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )