PHP payment execute on live

[webartisan]

Getting {"error":"invalid_token","error_description":"Token signature verification failed"} when exicute manualy with curl

And with $payment->execute();  404 error

curl -v -X POST https://api.sandbox.paypal.com/v1/payments/payment/PAYID-LUTMFDI9WC63696GD7221346/execute \
-H "Content-Type: application/json" \
-H "Authorization: Bearer EC-66K34893SE8295444" \
-d '{
"payer_id": "8GZTXUW24P8T8"
}'