Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '827a1e0546fa234796165e78ff266ba6c39b24932a417ff89af30dadd8babbd3' 
  AND token = 'zTO8L9S3jZ/wzjZ6t822ag8rw7N3KoJB9gQ1DzRIt4s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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