Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'abb11bb95700bcd002c3949f2420187e817fc56d6a2b2ca2f8f06832e3030bc5' 
  AND token = 'DKyplNTUL3O/7FvopUAoRva8HmCo3eHNa+WIwK6qIBs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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