Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60285fceed1409efc37a53888203eb773d8e4048825f445e808f9bdc6035fee6' 
  AND token = 'XuKxbfpx3ZRsqVj/FMRiB2JVzyf4gyfukSaHbRzUApc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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