Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9107935cf4cfa9ce3769a4ad89fd3c5ffee4b1c4ebf432d0afef62adacd30361' 
  AND token = 'SDHLWAyWcXEvcOT72af+eQin+GlLCVFunqSS6LUqrDw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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