Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd05d0f586817b295eead7f76f29782f521ed8a6811c6d35d4ac4c98d31b91021' 
  AND token = '+2zDmmUxjQSbDGfXusHteOaxJFL0jGMGxS5HB4tNenc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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