Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd89666967c574a994609b1ae6cb65457ea3645eb78f36e87e928603cb1dbe810' 
  AND token = 'vWhdgOPm2CTWdhScqa9dEy5FzIqqiEtboBagYzhdsew=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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