Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89d944f1853818e06a5e2353cce32c9b3034922d3bec40ffee2a8a7163252647' 
  AND token = 'lqJU0yDcMOXj9/4ZwgmJgx12dZdDKJKM8LDOu3yXc8U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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