Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67d10c8a4fc5996742ab04979877edad783e2eae92c3adcbe9a666f4b7111907' 
  AND token = 'ZaSmr3dF19NVcisk89LXMJZtd4ReCD3tqbiaFgStXK4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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