UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dHhA1mG9Z9KHRvgxIq9ntlnXkEJ1m4BRFYAVIH1T6Ag=' 
WHERE 
  key_id = '68c755df5e19827f88f209293f987703446e4990dda93bb996021b880da7a16b' 
  AND (
    token = 'dHhA1mG9Z9KHRvgxIq9ntlnXkEJ1m4BRFYAVIH1T6Ag=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )