Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '68e8ff96d6c1336a3c71c30bdc9211e60a4ad015e005fab2ec68c0554d42085a' 
  AND token = 'iWfKXcgALI4P/hxq6Gf78sys8dc2Iflu8E9nUzcp0vU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00648

JSON explain

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