Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e1c215b0611701ada96a80581996a50c172168938c2ddd8cab015bded44c664' 
  AND token = 'IDYb5aaygT+Bw6TAtKi/A/1NfJjT/Ipf+ett17fGoxg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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