Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '84d836b69663e40df32d43fc8bad4408b7085f8f2f675f61a66e072ec487c126' 
  AND token = 'uBUgRIZNA8N/98Gik9thN+0JfP99tpicuXePHmtOofU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00061

JSON explain

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