Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e4923de8f9afd8a5839da82aa0f57f1ec715a7fb7b9eb222718e2a16604d3fd' 
  AND token = 'jPK+sN++N0j9D5cqZptOoPqXTnht8NXLKkQc0fpYz4M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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