Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a039c401ff1346513c6d120d2a676f3d7cd02cdac41cd5236631bea3f6658d73' 
  AND token = 'mnA1q3yi7y6HXeabzFjtwV6DEpPoYyNzGbMAU0dHXQM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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