UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nm5xDvzRSijyhmC6p2iOOynUrrSy3U8PQAbktcjjmUY=' 
WHERE 
  key_id = '8ecac1839312d02edf76e7f723980a02383b59a4f0eaaf76a9376d51238431c6' 
  AND (
    token = 'nm5xDvzRSijyhmC6p2iOOynUrrSy3U8PQAbktcjjmUY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )