Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '36d64ab30182034abc0793da76d9122563c6b97b8b7ebb3796a3c2ac564efcf0' 
  AND token = '/kFQwNYbgqh8keUdxXYj8qRPooL9uWsag8M7hpUXt4M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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