Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '06253b8e3fca720f69641da8ca10235c058920683e40def7c8edba69b3613efb' 
  AND token = 'G/PHg0+k43JtAcdyoY/sDu38KcZeruGCN8GMUafWr9k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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