Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4efac7ae7fccb1a5d5e690fb762ff530ed3b61669ac1b904c2f1e972479c4891' 
  AND token = 'CzLbuYvvE/xDjyOXIanbtLGa0sosZ+cWGxKa8k90bS0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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