Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0809fff1d28670ed55aedacb05b4918939db09ec9d8f938af25cbfb3d9c85983' 
  AND token = 'D2ZWpDZhuXo2rei9I1uctiqdOyrMc+eTARQOKfWUL5I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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