Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96222c50f9e0f8e2c7da9ed329f0760cd82d74ddb729ecba37c787369a10efdb' 
  AND token = 'YcXmA4uJY9Aq+U4/n5JtO8iGrU39kUafGl1lT5G841w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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