UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Wtk2NMBiMh0lu3pUqnkLQdu0NlcddEOUncXQEn1KLb4=' 
WHERE 
  key_id = '6e79babcffda6d538803969e731776371e52289d0f3d841061a6e46e5b0eb54a' 
  AND (
    token = 'Wtk2NMBiMh0lu3pUqnkLQdu0NlcddEOUncXQEn1KLb4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )