UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r/z9tAX2MH4V+xP5f/KejcTjdf+PyjKQAtP3JRJnj/Y=' 
WHERE 
  key_id = 'bf764baddc079f7e5a580c8f4b25bdfc7d22cfe72ceee68f0cad655ecfa86de6' 
  AND (
    token = 'r/z9tAX2MH4V+xP5f/KejcTjdf+PyjKQAtP3JRJnj/Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034