Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '47428d2104c0c0f72d55ac042f0c4f7cd654434d96d567bcc3c59ada456a35db' 
  AND token = 'siwDDAbeMEmUdUB/E9F4azcYx0Vn8StEqzl2S4Nf4Vw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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