Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22fd39f7271d2e41ca8d49f898afe1628b8985646ad2811c73c22495863e7395' 
  AND token = 'aF4E6NVPHzb4QCJ7a265lWlvteCxrkJOp0jPAORqy0s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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