UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R4LzZ9BnVQV0g5HLZ0sVOI5mWeLvcjPBTYAHPyWqniw=' 
WHERE 
  key_id = 'b4814cda455795a8255f9be0e54e2e549c844774b669b652f6386099e130e6f7' 
  AND (
    token = 'R4LzZ9BnVQV0g5HLZ0sVOI5mWeLvcjPBTYAHPyWqniw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )