Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33cc5c4d8ee3f227874a8ac2957caca96cd15e13a543c138b03619f50431b109' 
  AND token = 'GaINMTEFxVH4OGJH/xzEad0BaUuPyQVeeFsiQwaCYp4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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