Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1925b7282d27bd2241387a314cac2ebff285d127ab11108574fb359c56d25716' 
  AND token = 'UZxyUhUBp50D2sDPQlJnjxzFM/ROv9oFr0TdPqfP9Ec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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