Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2dfe13a7c0b18265cf94bdf4dfb5d2553f9a15f071f64050e03b624640ac581a' 
  AND token = 'uVhl6BzfTZryroad6sQDDEvX6Vn6xEeOqFm3bdm32XI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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