Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8eede119990a10e4d35865f5f34668c4ddb6b8ad6617cce4577486299fccdb3c' 
  AND token = '0y2qRJ8Oca39tm0lJxvRFc5zEsGRSiZx9oLYoG4w8pA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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