UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Bk+6PaeaaiY8y6xGJ1eexQ77WgXwvwu9TfbYd3OCkD4=' 
WHERE 
  key_id = 'd7ac1d15c7e614150fbafcde7e8c280794836e158fa26d49a52bb93199afafc4' 
  AND (
    token = 'Bk+6PaeaaiY8y6xGJ1eexQ77WgXwvwu9TfbYd3OCkD4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )