Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eabaa59947e02262024be1e8a4199182a7d2ba2dae24e2fcd5c084d4aefaae2f' 
  AND token = 'SHQh1ZmPjm/ncLy4jryoxtS97R3U88Cjy8shTedNRUc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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