Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00237a9c517114da3ab291c15db35e5cc118a96d42f05b043dc5225402d93bb8' 
  AND token = 'M03kOJM/7Ehc8iW13AZ2J8USRUooYGDFixCZ7YzW3yM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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