UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'McOD6kHo6P+UFC3Zsk3Oefpkjry//12yIw+DDzd+D7k=' 
WHERE 
  key_id = '5621e4ac864dc92430648d6ace132ad199e4f54e832894f008431f02894aae43' 
  AND (
    token = 'McOD6kHo6P+UFC3Zsk3Oefpkjry//12yIw+DDzd+D7k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )