UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'p5UanxQBKozon5FJCS1wF3oK7PgVMSumdWWsbzvKLCg=' 
WHERE 
  key_id = '6554ea2a75d8b1fe4c72a588d61ca68af6be6a944b4234ac94a1083905de771b' 
  AND (
    token = 'p5UanxQBKozon5FJCS1wF3oK7PgVMSumdWWsbzvKLCg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )