Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2130a7229a286a1b375d387e77a818068342552d9fd5ca607ec9733904823952' 
  AND token = 'NgJorvyJ5O5I9Z7nQEfmBdhYMupcJ0A4bkcRV4vLokM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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