SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04bed1d0d2363d134b23b7d06ce952edd6813d829e5811a5a1c7b24365b5801f' 
  AND token = 'tfyxuOq0H/w+qjn+xpG2H/oruMWzwFli7Il/zv1LYQY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}