UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'rwzHvTTUoFYv3bYsYbmrTsiwgaTs9Sv/0GO06F2bXoI=' 
WHERE 
  key_id = 'a572a1c10bff520da72cb5ca41bb23ed352d896d0c0ce9f54d1f8209c57f6c5a' 
  AND (
    token = 'rwzHvTTUoFYv3bYsYbmrTsiwgaTs9Sv/0GO06F2bXoI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029