Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32c679ad29ee615647a1d6e66bb633bce6e92a4010dab348ccfd079120db0d2f' 
  AND token = 'NuvqVHG7uTD7b8nwT9qQte09xWK/SEN0EqI9v6Vph0U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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