Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2089581b9ef11a30f18e599ea0da47aa067766cf66b506cb6d42416459ff838e' 
  AND token = 'YMZYenHsTlOHdKXuMRpPUwnFG1opYa2SsNjt9BRPNKo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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