Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ef3115708434a199be6104c61c780041dc11060dbe4ac100103285071806b925' 
  AND token = 'X7HdlLKNO0oQiumcDW7boYqPad4S/NynmP6cjYDEO8U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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