UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wdlayacHgzLjknau1V1mYNr4S3HE3d6ivoDTmHAsKXs=' 
WHERE 
  key_id = 'b3c3734812813672e0c665a402fc6a29455f0f8f5e0148f47702e2fe1bd83f3f' 
  AND (
    token = 'wdlayacHgzLjknau1V1mYNr4S3HE3d6ivoDTmHAsKXs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )