Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05631f445bb548a6d0153d76075c049be76a23e079976ae865ccf80fa14d57fd' 
  AND token = 'v8yuMHGM5rWxIqEC/DBIERctkQiqB60jjIoUs3jX6kM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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