UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xGjDzcicgc4DscVvI24BINRCH5s6KSKccAjTWpkYEyc=' 
WHERE 
  key_id = '81efc2c149036c3d8302041fbb6472ed63c1684e78c46f2b596272d8d7da6466' 
  AND (
    token = 'xGjDzcicgc4DscVvI24BINRCH5s6KSKccAjTWpkYEyc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )