Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a409588e5a65eab8e3578bb0b515e3cebd77573e3167b65877f1fe032063bae' 
  AND token = 'hFUuPwDmBTz3XNe1k+8+PD7L7G81ErHPX1P/2XMdudU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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