UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QznWM0vsCGccUfgH3gTJrzYjVYpNXfxvowPzuqfjrQg=' 
WHERE 
  key_id = '2847c4474fe112499fd6c4512c5640237de1e95d7c186cd7df94d7346e25d221' 
  AND (
    token = 'QznWM0vsCGccUfgH3gTJrzYjVYpNXfxvowPzuqfjrQg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )