Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72e9a6cecc8c105e0d23b4676e22ffa14af15b7f088a88425a6ec038e7c6cc49' 
  AND token = 'yZkyuPXaSafcBCE/3kmQE6Za0qcFDsWg+0GcY9IGSqQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}