Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae7ca69705ab1d2b09334f70da10b03e1144bdca12ffa0fd5f850895d57428eb' 
  AND token = 'rJ5s0GLvleDctH5v7Hi7tm1wNxY16bunx6eBq5FIGPU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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