Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7cebbc74dc8bdc16469da18626d71d85d117daf8a66e5172cd57e5c30df011da' 
  AND token = 'B4yGkaqOIjX7u1WDHx42eYX7s9foUPZXkHCtsLISOb8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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