UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/rU/LNIZv+/nl9+2Mo/BFeSL876W3kiHPdZ8wWmqBug=' 
WHERE 
  key_id = '818a0294d9409076535ed174c7061c65c893beeeb9d916085cdbe483ac811029' 
  AND (
    token = '/rU/LNIZv+/nl9+2Mo/BFeSL876W3kiHPdZ8wWmqBug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )