Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '713886a5e6921e8adc5e80272e04cf41440c1b997c0f5a13dbf323d7e059e197' 
  AND token = 'wqBmL/fkGsd7z5nIWDJ4k468LwLvLJwKqFRStpXbqt0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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