UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CYu0HnskP0phzSswcuztFH6m6btME74pBXgTEpxt0l8=' 
WHERE 
  key_id = 'e4e5c6792e999c2a8f298ee427527b3708deb1de025ec816b1d02e0be1dcb817' 
  AND (
    token = 'CYu0HnskP0phzSswcuztFH6m6btME74pBXgTEpxt0l8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )