UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6fVmDDcLNUD4a8m5sTkAZyrUqr5iqxGmzrveNbOeaZo=' 
WHERE 
  key_id = 'bcdf51346b0cc52eae3e82637ded79a6ff63b424a4761d9718efc024d2b5518f' 
  AND (
    token = '6fVmDDcLNUD4a8m5sTkAZyrUqr5iqxGmzrveNbOeaZo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )