Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13463fc70f40ef1dbaab9c3c46e04a2a007d6528452654fd37ffde0729882dfd' 
  AND token = 'tYsqom/BddFfP27nUywuchEpnRHxezutsCHHuDnzXyE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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