UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gkxVNchw0uu3zGmdtQatzMTDEuPVxWrlNm79gECA7PM=' 
WHERE 
  key_id = '4d62f44e76c40ed20e346dc63b21412bce663cab2e06789b60f42ec236a0dce5' 
  AND (
    token = 'gkxVNchw0uu3zGmdtQatzMTDEuPVxWrlNm79gECA7PM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )