UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OBuLUyGMpkRzXHWEAKkcsbIL7wp9N2l6eUEgYY8vYH0=' 
WHERE 
  key_id = '6859ae6ceeacef5b4cd01ae7ae01f9ca7a36fbed1fc1a3660339dce1347740c3' 
  AND (
    token = 'OBuLUyGMpkRzXHWEAKkcsbIL7wp9N2l6eUEgYY8vYH0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )