Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '71c6f50d59e9b26d1359635068bf160e9ef545572fe49d7180b21b863cb5572d' 
  AND token = '6x35H8kslOC8sRxDVN+wFMJB13iXzAaWbXI+tKnGoTE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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