UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QHznYDavmWbEqfYWah95tWbYER+zSuYnl/tKEib1txg=' 
WHERE 
  key_id = '42477d01436be54c0882750b547e72af831854d8f8da3984b08cd401d9e5e98b' 
  AND (
    token = 'QHznYDavmWbEqfYWah95tWbYER+zSuYnl/tKEib1txg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )