Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0334b425a80245ede043fd223bd99af7f262fd7674ab7aa124f768ead0181f0e' 
  AND token = 'KPgQKBMGoIlORnPjB45EhicuOfMBIFM11ui1w+U9sf4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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