Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4ef021ed50c8ac2ae2f1fee74147d37150f1483ca3150ab9ce4eaea50e52554e' 
  AND token = 'AYlX5pAlu0gsMD5zh/ktuxtp5YPyETK8iiDpPdd6w0A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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