Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e22dbefd16bca29a3d6d73791f0f69ebd8e1899a208bc536f063d6855352078a' 
  AND token = 'BGiefnwNCUMau8DCWRQOZVFRuzm0mU7HK3V9zxIg1qQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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