UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pkudfrw3fLW7kOki5fbBKNGTII5y4xGaPhUCPkWauDQ=' 
WHERE 
  key_id = '6ec98fb9d8823d022753b3154a6bf69f4d264c637fc8866433866c311af280f8' 
  AND (
    token = 'pkudfrw3fLW7kOki5fbBKNGTII5y4xGaPhUCPkWauDQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )