UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dx8ZnipjuGcvunvhVq+alW1UKC2DFbaldA6Uf5BRmkA=' 
WHERE 
  key_id = '3808688c8673325281d623703f54f129151bf807168cf30933bc170a30c45f4a' 
  AND (
    token = 'Dx8ZnipjuGcvunvhVq+alW1UKC2DFbaldA6Uf5BRmkA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00032