Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '889130c461aca34bc9a4cce2a52e824ff08518b441cba70b20b7cc3bf0ed5606' 
  AND token = 'Wr2Rp5vCEaobcjFHGmNXbk//GTyJNpDOz8TKOjxd6ro=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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