Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4494d3807cff227e5c1c8329f480ed4a094e7499c1cf948c4734aeda91321d61' 
  AND token = 'TtIoEjPpqUhOsI5QjMHfkbS+sJBXah3jdt6yHgSdkK0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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