Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5fb0618519b282e8f0c9c3b2a801d79a982b7397c34eeaf624b71c06080116a3' 
  AND token = 'xEPNNmesQ8iMEvDc4sR9ShefQ0Kw5jmZjXQeeSz43WA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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