UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iG/AtU3fhX9ylyA8GF9mLUikz4E7jVvTe028T8N0ICs=' 
WHERE 
  key_id = '1b440c59b9c67d668f083d0506687964b50ecd98f337b0257c70c55a8cdd3e2f' 
  AND (
    token = 'iG/AtU3fhX9ylyA8GF9mLUikz4E7jVvTe028T8N0ICs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )