Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '480edd933cfbe6e5f675d15b89a92aa96d49535c742ae70f53f535fccf430432' 
  AND token = '9TzhNZ6z0nO2gOB0jGr6h3J9BE4gR3jUmTKlK5B8LgE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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