UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'XTyb6P8B3QfP6XGAqY4EKcpTu/QKQW9hCeWB124D1wk=' 
WHERE 
  key_id = 'aaa721c3c74becf130c2f0d4426735428c2f3e9852a8e00248f3af7206e0e864' 
  AND (
    token = 'XTyb6P8B3QfP6XGAqY4EKcpTu/QKQW9hCeWB124D1wk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029