UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PbfrRLtVvp3ZJLTgQrfTRUOfLsAPiwdlibm/tPjepmw=' 
WHERE 
  key_id = '6b77ad9d6b5b9c932ded8949c92635d0281dad342fda33eb3f7fc49fa69da978' 
  AND (
    token = 'PbfrRLtVvp3ZJLTgQrfTRUOfLsAPiwdlibm/tPjepmw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )