Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '37541ecd728c64e64c8f158b7e8e6094bd90a58a3c58c4a7f4b08f68920ddfb9' 
  AND token = 'E4XHM852A0OKzncpnECcFiNbsEjk5DlXShS9ELzbNEk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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