UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BJIEMSBU/TzxTHhwJfajVPlGzE+ihgfjC4MJnidBR7Y=' 
WHERE 
  key_id = '562ee8f0a04cf6d6df99f53a68aceefe7b15679cb0305479bd465ce1d4030d1f' 
  AND (
    token = 'BJIEMSBU/TzxTHhwJfajVPlGzE+ihgfjC4MJnidBR7Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00056