Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06410db243ca6fe999544589c7ebe175817812b31f7413b2e1cdc8b7fd555db3' 
  AND token = 'byJ6xha0p6qP4GeXdi8RrNZYKtaMxGneLySL6gV+g7U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}