Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1665842570b328f67645cb14c4aeb48e4ba14d544e13a6cd3dc38a8ea2100299' 
  AND token = '1Kk8WwT0kt4vcx4O0A9oZe39kRV7Vs6DDEYOIPs1GXs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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