insert multiple rows in a data extension by using rest api - api

Question

I'm trying to insert multiple rows in my data extension by using a POST request on postman. I'm using this documentation :https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/postDataExtensionRowsetByKey.html.
Details of my first POST request :
My URL :
https://MY_SUBDOMAIN.auth.marketingcloudapis.com/v2/token
My body (by using the informations of the package created on marketing cloud) :
{
"client_id": "ssd6ssd6ssd6ssd6ssd6ss",
"client_secret": "p3sp3sp3sp3sp3sp3sp3sp3",
"account_id": "7842222",
"grant_type": "client_credentials"
}
I send the request => Status 200 OK
I copy the tokken access.
I create a second POST request.
Tab Authorization, Type = Bearer Token, I paste my token access
Details of my second POST request :
My URL :
https://MY_SUBDOMAIN.rest.marketingcloudapis.com/hub/v1/dataevents/key:EXTERNAL_KEY_OF_MY_DATA_EXTENSION/rowset
My body :
`
Host: https://MY_SUBDOMAIN.rest.marketingcloudapis.com
POST /hub/v1/dataevents/EXTERNAL_KEY_OF_MY_DATA_EXTENSION/rowset
Content-Type: application/json
[
{
"keys":{
"ID_Crawl": "test123"
},
"values":{
"Source": "2013-05-23T14:32:00Z",
"Type_contenu": "no",
"Statut_Notification": "non lu",
"Champ": "20081105",
"Origine_contenus": "test blablablablablablabla",
"Date_crawl": 02/02/2023
}
},
{
"keys":{
"ID_Crawl": "test"
},
"values":{
"Source": "2013-05-23T14:32:00Z",
"Type_contenu": "ok",
"Statut_Notification": "valide",
"Champ": "00000007",
"Origine_contenus": "test blablablablablablabla",
"Date_crawl": "02/02/2023"
}
}
]
I send the request and I had an error message (Status:400 Bad request means that bad synthax):
{"documentation":"https://developer.salesforce.com/docs/atlas.en-us.mc-apis.meta/mc-apis/error-handling.htm","errorcode":0,"message":"Bad Request"}
Does someone know where is my mistake ?
Sorry if it seems that my mistake is a stupid one, I'm completely a beginner in api call