UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9vxZ4zQMO4h44JgYeh0BTcGG27IApo+BHta1IcQfRkE=' 
WHERE 
  key_id = '9d21550e975a9dc0c9b0bf47b741fdff79e9de56c136136b1e4b04f39e912df7' 
  AND (
    token = '9vxZ4zQMO4h44JgYeh0BTcGG27IApo+BHta1IcQfRkE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00037