SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '67a2fbc66c8192297f31c922ae71032f5f2dc172bd486548c1275de39d9afa1f' 
  AND token = 'JFqtwKgawyr63hDCZ1gzovygV6WVTpwp7Rn4UNvOP4A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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