Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91098c5c0bc95742b1c8c61a19a35a20327a29ff95517ef05fa3cb53339a2690' 
  AND token = '6PazBMS6PqGEXOAK/uJ6wO5l5HoniZMrHzx9ByBJlcc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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