UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u6vCytFGoi13bs4aUi12rsL1SytR82LyuMHIb7z+yyQ=' 
WHERE 
  key_id = '409d5b972c0f3aec6290836ca3ff2f87a4e3f6681000c3ed1955026fb6d7033a' 
  AND (
    token = 'u6vCytFGoi13bs4aUi12rsL1SytR82LyuMHIb7z+yyQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )