Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd34ff9e356245b6c7ccf3357e8b2a7057d22f45150e84394278ba1a854ef0a3e' 
  AND token = 'vJku3zNWeRzBmbROc3BmEM9yGPv55loyVHA3NNA7Afo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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