UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lCxO6BRM7bFV66aFkmSvX8Wbfl71hkkBVxWC3z51CNo=' 
WHERE 
  key_id = '3c74937e31e9884585bac725fdfff647ba2f431dbfdd0694a90ead589b82da20' 
  AND (
    token = 'lCxO6BRM7bFV66aFkmSvX8Wbfl71hkkBVxWC3z51CNo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )