UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/ac6UAh7gS7sf9vIIBo6pzGne1yg5w3L//A0v5vwyCY=' 
WHERE 
  key_id = '1276f54720889359d950aee19a2bd47fd98c76690d8a99c81a342c0838efc1a8' 
  AND (
    token = '/ac6UAh7gS7sf9vIIBo6pzGne1yg5w3L//A0v5vwyCY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )