Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e6f2a533a627bd9bf1b06df7dcb517609c42731d1002518f773460edcab96346' 
  AND token = 'V/6biDttzyjoGpTpX4J/UJMFCPoyRxuUcVqbctLW1xQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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