Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '17ed34467e55f573721064e495b6ec2559456db49363ec5851de833c3e87a32f' 
  AND token = 'YeQN3YOpWPNY6MeRuupRd+wKnvPdy6yYf4kfwsCdCrY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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