UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8j/Sy/kox9ubJOZJuX8cGhiJs1xfkHzcjTkH81sYWbY=' 
WHERE 
  key_id = '39a292056a845f945b4af9da3e0fe95d51c42c1d35006e1b78500f5cf94ad0c0' 
  AND (
    token = '8j/Sy/kox9ubJOZJuX8cGhiJs1xfkHzcjTkH81sYWbY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )