Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b531330fbfb01ce36a5cf5d1c4c42184a5dcd323ff4a2e82a6209eede5387cb6' 
  AND token = 'e2FL4UZTf0KFNICaewWbSIKKWt6KWMms7u5hRmizFyw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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