UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fIPJu21Lzk6MRzRncE3BwDysvDyF5NEom+QTYilVb8c=' 
WHERE 
  key_id = 'b8b6d8d800b310063714d59815a57fed40b9655228b098215440d8419462ab19' 
  AND (
    token = 'fIPJu21Lzk6MRzRncE3BwDysvDyF5NEom+QTYilVb8c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )