UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U2rywvsevbLf4eMgVhfIC5xdJHPMzXX7llN8IgDKnZI=' 
WHERE 
  key_id = '6ce3e9404d0b8bcee002539f2fcecc520734a7938956bd9d48a0673588d6b224' 
  AND (
    token = 'U2rywvsevbLf4eMgVhfIC5xdJHPMzXX7llN8IgDKnZI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )