UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+2v8v751uSyiERo8R9lmEJs1UtVXCQMuqo3n55UzQY0=' 
WHERE 
  key_id = 'df99d4b2fa05d2508aed94902a48a11d5b14252f1d8a176292208455f9d55864' 
  AND (
    token = '+2v8v751uSyiERo8R9lmEJs1UtVXCQMuqo3n55UzQY0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )