UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'afidyj27591Uq81M3r+I/WZSgU2rM8MHBfcOa1Uo0xY=' 
WHERE 
  key_id = '20a018050b6632b83dc93d7637755af4e7ad5f08561482fb1c3912553becaac3' 
  AND (
    token = 'afidyj27591Uq81M3r+I/WZSgU2rM8MHBfcOa1Uo0xY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )