UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0Xl54Hy1F/bz7dxP3nI0Z+rfNRFIT8PWsjGMN5Q7Rs4=' 
WHERE 
  key_id = '126fd6cd6507cf40d7bae960bc754a472ee0fc6fa913c831852e0c4c85bf440c' 
  AND (
    token = '0Xl54Hy1F/bz7dxP3nI0Z+rfNRFIT8PWsjGMN5Q7Rs4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034