Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b04c1906a5266574b45e4091af0b64a08883e422fb41a49601c78a3a7d921bd' 
  AND token = 'uQDIcjSQ1blitjBZuRvbHy5u7A3yJHzA9ZLnE+zM5gM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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