UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R30Z27sKVynWrscFsScy3Qti3x2k4LsDWR7zKEN6ZIs=' 
WHERE 
  key_id = '2d7487036789a7187f744c708e0ebd32ee83618fc5270cf58fd830cee9922767' 
  AND (
    token = 'R30Z27sKVynWrscFsScy3Qti3x2k4LsDWR7zKEN6ZIs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )