Invalid OAuth access token

I am getting Invalid OAuth access token:

{“error”:{“message”:“Invalid OAuth access token.”,“type”:“OAuthException”,“code”:190,“fbtrace_id”:“AhSrP_dam-WADDe7GjG5w9B”}}

my json code is:

passData = json.dumps({ “recipient”: { “id”: 627531511140634, }, “target_app_id”: 100293511640495, “metadata”: “-X pass_thread_control X-” })

	accesstoken = {
	 	"access_token": "EAAI6vJDOkRoBANzeSZB",
	 }
	print(accesstoken)

	passHeaders = {
		"Content-Type": "application/json"
	}
	hj = requests.post("https://graph.facebook.com/v2.6/me/pass_thread_control?access_token={}".format(accesstoken),
					  data=passData,headers=passHeaders,)

	#hj = requests.post("https://graph.facebook.com/v2.6/me/pass_thread_control?access_token={}".format(accesstoken))

	if hj.status_code != 200:
		print(hj.status_code)
		print(hj.text)
	else:
		print("HANDOVER")