UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LctLUkTUk2+MhJtCQDxFzy/qkBLI7OXIk8KwzEviUyI=' 
WHERE 
  key_id = '79639078fcc2171ca806a34ecae3cc71ef4a2ceb4e235b5cd05c403fe510d60b' 
  AND (
    token = 'LctLUkTUk2+MhJtCQDxFzy/qkBLI7OXIk8KwzEviUyI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00025