Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '996b70e2e654221e641b345e8ed70430d12b612b5aec7599882cd4b97c7e5206' 
  AND token = 'D5Fa/fIu9zgp0zoBAbpOyoUhffa4YL4HtwtelhqqENQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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