Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fd467fbbb6823666aa98220430e46491d4070aaaa367bb35e17e04ef2457f914' 
  AND token = 'dSM2g5g3JlITW2WQVZ151C8uwvb4kqXqb7tkyqB8vsM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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