UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a4QHUIJsWcUtA2n7bdTVuhik4QZslokf4depVna9c/U=' 
WHERE 
  key_id = '6a8be472973bc0859aa11c07f3c9b3a39af9f723a0acf9423f314a4fedbe2168' 
  AND (
    token = 'a4QHUIJsWcUtA2n7bdTVuhik4QZslokf4depVna9c/U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )