UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pHZSNM7r1ua199ocfB63oBD0/rBlqUAo0ju5K3e+MVw=' 
WHERE 
  key_id = '79fcb5e19aed325631aa5e78721e2ccb3c37bb8e6df7236162419e7aa9dcec22' 
  AND (
    token = 'pHZSNM7r1ua199ocfB63oBD0/rBlqUAo0ju5K3e+MVw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )