UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kumN02sx485NeArp2mM/pKsItMAcmfae8fBArXDunWs=' 
WHERE 
  key_id = '8e1c9415b600e4c6e2640faf4f83116502d02b332dc4346407e7a849ad752015' 
  AND (
    token = 'kumN02sx485NeArp2mM/pKsItMAcmfae8fBArXDunWs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )