Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4907daf4479ddf5a2a179ee7d156a46fc0471968ba51a8504a988521d44f1dcc' 
  AND token = 'iJAX0gw9pnz0xyhF6P+h/4oWS9lsevjRzlQtLckgHJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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