UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xl3rNKGSR7z7yTojaCQC+75zHfIwQDQo28jzZnxPmSg=' 
WHERE 
  key_id = '50eb6a9519e93f88389d907dee9236395bf7064ac734a999ef093f4d60cb2e7f' 
  AND (
    token = 'xl3rNKGSR7z7yTojaCQC+75zHfIwQDQo28jzZnxPmSg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )