Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06d1b08705dc068888104a80b22f2f96ede3161cdfc18af3a5478a7c8e797864' 
  AND token = 'lGwKnIrgt7HUnsI1ObPTjoFFcKdGYWs7XZbX/0VH7jE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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