Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04cc96ae44e41310a32d8d9e352740bb36ca4c580174d410837882d5a43e84f3' 
  AND token = '4CIe4/P2mzog8AGAcuBVZcSeODfhpmsdYBbtASnGvpI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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