Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e92167c066798d4baf724a7f67aabf8bce00ddc06fd738103a4d5e6c415ed63f' 
  AND token = '1FoejSWPuPvVtjw7mbXwxTHV3aNUC9i2Jx3EJaZII54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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