UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PxNLeNEZ8VIAuzkUoOl0aztmFiJNNGvJgcCCAJN1clM=' 
WHERE 
  key_id = '940f50ef8511d9e2e81d3dc70eaaa9f05352421736b1840eb1529dc86ef9ac75' 
  AND (
    token = 'PxNLeNEZ8VIAuzkUoOl0aztmFiJNNGvJgcCCAJN1clM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )