UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gnNeyB2UtgTJ3ofDCkXaywjMTmDuPK7F21VvNMUKdsU=' 
WHERE 
  key_id = '820feeb9974b34a9095461685df20d05cc983183fda2cc8404384ac165625b0c' 
  AND (
    token = 'gnNeyB2UtgTJ3ofDCkXaywjMTmDuPK7F21VvNMUKdsU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )