UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rj9ZfnQisqps6LAkjzt3Lq+ccuHw+X3wNs3YJlv1rzI=' 
WHERE 
  key_id = '91cffe6b33031f3dc890371fbc86b9f70a7fd412634cdbc32faa98a8e8e694e8' 
  AND (
    token = 'rj9ZfnQisqps6LAkjzt3Lq+ccuHw+X3wNs3YJlv1rzI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )