Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '69dadddd2fc846be31dd37c5a95d66343a111bd41e4c3da57609bc3ae830b34c' 
  AND token = 'r2hlMboSU5/gPDNqRUaJc80M9Xx01gx0J284r/a7uWA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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