UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Pq6GQ6HAN6HEj52dWVKSm5Wxcwikcos4fqxOwOuGnCw=' 
WHERE 
  key_id = '3a51b147ed524b34856921f98f54941245b357b349f63cc2143b1414bf7ac434' 
  AND (
    token = 'Pq6GQ6HAN6HEj52dWVKSm5Wxcwikcos4fqxOwOuGnCw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )