UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3suO1wzHvnhfGQMRFNtxgar5+pAFW3BZEOTu76QwEi8=' 
WHERE 
  key_id = '6c7eddf0cc8b005ef3e3ef1607452b5d1feffb012f064877850be9bacbc12642' 
  AND (
    token = '3suO1wzHvnhfGQMRFNtxgar5+pAFW3BZEOTu76QwEi8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )