UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '3o1za0e7Svxlm4QCi9D+TlNIW9S7E39823e+WkIjZNg=' 
WHERE 
  key_id = '1843e8966e3fb2c10644b78beefb237fe05142eb7b26cbff342a6e6f2abf6c7f' 
  AND (
    token = '3o1za0e7Svxlm4QCi9D+TlNIW9S7E39823e+WkIjZNg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )