Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '094d41b1efa5717da1a13d15041dc02559c7b3d07a780a4e94b5ab7d7a285f09' 
  AND token = 'dzoQJWyF5wk2B3/xvakn4PEvI8Gq4XV/eOymnLDAAXE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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