UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R79XiW+9wYtOp58U3lRiwrd7VmZpbDb4GqYfMgCrico=' 
WHERE 
  key_id = '8b9f3942b31870bf2e4bcc98396b77cae249fb4097876d0f375f66f94db98957' 
  AND (
    token = 'R79XiW+9wYtOp58U3lRiwrd7VmZpbDb4GqYfMgCrico=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )