Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07562f3327a24f0f93cbf21ee1c1ddaf498a774f12a3ed7d33f0930cb0c1c84c' 
  AND token = 'j6YaFzTmda5vBdZuDFtD/q3q2Vd1frpVROsBZnVBEio=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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