Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '024a8f12434d3b6296142b81ac5da63e677de307f42bb81ad80f673f39488660' 
  AND token = 'eB1FWyJOhzbA3F8ZeX+MIhSlE6+8Tprc1lu0JD03Osg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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