Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44c831ed811c7c1989eaedb71d247dce7c31e804b04060fad36faf2cb70f30a5' 
  AND token = 'SMtCCaST0gkOd14B9617WDMQdZE9O+wIOVrUlayTVqQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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