UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RCJBA3g3Qlivj01HQHXOjfNiHjny+pir0MiKQWXvGy4=' 
WHERE 
  key_id = 'fd9e1e48d469508062bf99848b106184bd76e0b4319a4e1dc2256de681cfae01' 
  AND (
    token = 'RCJBA3g3Qlivj01HQHXOjfNiHjny+pir0MiKQWXvGy4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00054