Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a463f8b3beb6a4c8983397dbe06924824340e1513250ce11cb0079d49361246f' 
  AND token = 'y9yjercaqjuokbzARoRf2jzntRDN5qum00xDs8CXdj4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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