Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd49bf01d7e77543a1e4c4ae9f8950681e4920ac895f39eb62c9b84ccf3940259' 
  AND token = '/Zwt+pbttnZui6vq68IWpemCyKUm8ARWYkpoAkyfNls=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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