UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/VUm8/NKKumDS0tEQcgkg5o26wol5FST/6EdXXmcTZM=' 
WHERE 
  key_id = '2c8f9a0a21dbebff95f65ca23bab5b28b39741021a514d62b288107ae5dad98e' 
  AND (
    token = '/VUm8/NKKumDS0tEQcgkg5o26wol5FST/6EdXXmcTZM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )