Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '405debac003b9ad7fa8c3cd86fbdf1242fa55532ccc6c051cbf5373e402ebc8d' 
  AND token = 'd0DXBsDKRkle3H7elFLezI/bbLOQIE6oje+AdmpGTpY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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