Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '02cd480038c62e51235fc9b57ba945869464da89bf105c5a0ecc1f5691ab0a26' 
  AND token = 'cpaL0a7E6hAXgkKiDhWID47F+CF4+EA/3Mgq7PGLY6A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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