Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd5358ae04ffe1e826d0f40b8bdd02a0deef33deb3d6dca27e7892b20b26b654a' 
  AND token = 'V5PaMcCvxR9m7ppWvS/xqRV9F2IWmCAnmPBsADRvJD4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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