Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ce9b1ca778faea3f8cc31c538082042e485dd36e070234c55340587bf8b9312' 
  AND token = 'xhkmtEaWxBVSgvfepm8V69YKN1DpUPxWz+NdMeY1QCE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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