Update a customer note.

{  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",  "customerId": 1,  "organizationId": "7bc05553-4b68-44e8-b7bc-37be63c6d9e9",  "contentText": "string",  "contentDoc": {    "version": 1,    "blocks": [      {        "type": "paragraph",        "content": [          {            "type": "text",            "text": "string"          }        ]      }    ]  },  "createdBy": "25a02396-1048-48f9-bf93-102d2fb7895e",  "author": {    "userId": "2c4a230c-5085-4924-a3e1-25fb4fc5965b",    "displayName": "string",    "avatarUrl": "http://example.com"  },  "createdAt": "2019-08-24T14:15:22Z",  "updatedAt": "2019-08-24T14:15:22Z"}