SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '659bfd89aa9843095fc7a557f5764d0499fe0eb3c897dc8b426e4b616cc42151' 
  AND token = 'pyyC8JKhc9ECj5c37YBiou977a6rqfjDgzAMBhVmSJU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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