Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cc900685e2ea69e57550e2bd9bdad92dedb54a28675915ab91e129084fadfe9d' 
  AND token = '1us7Pb+B4SjotB2NsNzM1M6265HBP7hqT/6jyXQzdiI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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