Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00f6e942d4d12a293f82a5542f1cd92a904824eb592a4cb4f0ea65dd2a1cf710' 
  AND token = 'zyl5HrZv2XN/xFfzbs4FXyjo7yX0GY9wrUzPdvHekCg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00158

JSON explain

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