Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b7b169eeaa9d348fdce2e42b8a878856c7509ff5925e91807e75b5692b636be7' 
  AND token = 'xbQtlGZYeSFZU9d+PvPqqK1J/oauoNFa71AAXmFdgas=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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