UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vuj2M1D8n4oP6D3baqZGcAFHAjmWoHgKcgqYjBRLKV0=' 
WHERE 
  key_id = '876b42258882a81b85d2215b4100c8d0dcc08a535d3e4cf17f357749dffa5971' 
  AND (
    token = 'Vuj2M1D8n4oP6D3baqZGcAFHAjmWoHgKcgqYjBRLKV0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )