Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3054fbda191457bc6c6f1c9c2b96384496ed71ee1058ea76d1abfc896d00de08' 
  AND token = '8fquftVYLHp//laodtv267Ta2F5IhtDTtiYXas6fv1M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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