Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5fd215aa56c88cde52f9bce7e1bb819cdb0e21e2d9722a04da85a247656f5be9' 
  AND token = 'KtHsdG7vn22xQ96owAIergA9V404E1G8RH3ckV/P9SA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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