Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9391c505366429d99307f3d551bc339c43eb399fdf0cda2e56d6de7d77adc774' 
  AND token = 'ZWVyGK8XSqP82qHR96fxhO2CMSBqHPlghBtGqKSrumI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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