Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '867557129d22264039384362fbceaed2f6ac122cb80d125fd13e453c7ab39279' 
  AND token = '+t1IRQUR+sqOkbMDlE5V49gHdj2RssWMOTjpR2xsYQM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00070

JSON explain

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