UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Skn46qNMWLnNP03StPlAVGfpq/zOZAJabn50NLNE/F4=' 
WHERE 
  key_id = '825716017d69394871b40ccae3802ec274c27812f4a0bfde23294e96e3c08a4f' 
  AND (
    token = 'Skn46qNMWLnNP03StPlAVGfpq/zOZAJabn50NLNE/F4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )