Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33742f159e1015db2929f73d5eeb306817cd8f0cdd5de40ce01a292764dd08bb' 
  AND token = '4uMup7iydkfTnfiIIx7PObuTtXHh5QLiKhMcJ3yfvLA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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