UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '540CSFc1DIx7NTXNaHt5VV/2T7mtZYF3ogcire5tgJA=' 
WHERE 
  key_id = '51867e34525a5852b0945b19ce7837192525bd92cf54b98ac1e39105a2e669a3' 
  AND (
    token = '540CSFc1DIx7NTXNaHt5VV/2T7mtZYF3ogcire5tgJA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )