Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0353f729bf154d92a2c13051f8601ddb3aa1713cf751368fc2071dc6667c3527' 
  AND token = 'jqbG9/jr2dd2MX8/m/0vl8WkWQ7ISGfURAizoDZ9v0Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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