UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RwvBXpkvxa26QSV2RoBfw0HDzfQEKgXMN+8VeGBpATw=' 
WHERE 
  key_id = '81bdc18a1d402572581b69ad94af6aa51a929f433919978f309731110415bd72' 
  AND (
    token = 'RwvBXpkvxa26QSV2RoBfw0HDzfQEKgXMN+8VeGBpATw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )