UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MLn1cQHmoPZAxtYQKk1+U9B+fUcmHAfugINEN3dQAd0=' 
WHERE 
  key_id = 'a1837e4f34b78ad43e9faf5b3a252e6d43660a6428a847c48a1e2b4e698e2f8c' 
  AND (
    token = 'MLn1cQHmoPZAxtYQKk1+U9B+fUcmHAfugINEN3dQAd0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )