Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '79329c21c262db91ee95ab9bbdf7be576c9489d589b342a334c9b824005bb9d7' 
  AND token = 'uHkbUNKsD1KcUgtlUvgS2aB1D9tPrUxJVoofDUHAkTw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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