Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '105b4bf4f047f8d09dbb63bda8823272c3a6524047233a847cbf5c71230b5b3d' 
  AND token = 'uNQTJgt32b+YTpu25JXHs0c7aIUtDMDoeE84qS+59/Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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