UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RA0TSSWGPuf8Iyg6ExkqUL6zMEhNFeUv2YslstPTu9w=' 
WHERE 
  key_id = '8b6f84d0a2eccccf8ac9fdf954b7b1e6c28b4fd04b125b2841c3f8d6526f6417' 
  AND (
    token = 'RA0TSSWGPuf8Iyg6ExkqUL6zMEhNFeUv2YslstPTu9w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )