Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '580dcde757ded14b8dd42e21e3bf29f38058bac668d0c55e433e899ce6d5ab23' 
  AND token = 'H+aexIqm8Q++OmEVCitFQrHOdnIvd03wOk65BJDGrkU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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