UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RPr5WblNUujtV3QCeJdNWTmftquN2yVTHM1+CNTjZuk=' 
WHERE 
  key_id = 'a76b9cf3cab548bfd4cc029a40a34ec061e61b03d3bfb516c611f3ac68f6ee45' 
  AND (
    token = 'RPr5WblNUujtV3QCeJdNWTmftquN2yVTHM1+CNTjZuk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )