UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MZt8i4BPDhRcVwK+5wei4k+H86h4N7F19FEz5uCrGXE=' 
WHERE 
  key_id = '94e6644ad058e5b01b294a00ffb490cf11e9f9e59b41e98779eeec1ef1636371' 
  AND (
    token = 'MZt8i4BPDhRcVwK+5wei4k+H86h4N7F19FEz5uCrGXE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )