UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B68/Uxbkfy3Wfpe2cmTgJuZ734fUgDQo16jlgpi1sJ0=' 
WHERE 
  key_id = '12ccce44172294de4d2ac79beed9ad615c067b67de07268f72928c1728a0cfdf' 
  AND (
    token = 'B68/Uxbkfy3Wfpe2cmTgJuZ734fUgDQo16jlgpi1sJ0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )