curl --request PATCH \
  --url https://api.dock.us/{version}/tags/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "title": "Sales",
  "boardIds": [
    "RiHO4e0Ju3DS"
  ]
}'

{
  "data": {
    "tag": {
      "id": "RiHO4e0Ju3DS",
      "updatedAt": "2021-01-01T00:00:00.000Z",
      "createdAt": "2021-01-01T00:00:00.000Z",
      "object": "tag",
      "url": "https://api.dock.us/v1/tags/RiHO4e0Ju3DS",
      "title": "Logo",
      "boards": [
        {
          "id": "RiHO4e0Ju3DS",
          "updatedAt": "2021-01-01T00:00:00.000Z",
          "createdAt": "2021-01-01T00:00:00.000Z",
          "object": "board",
          "url": "https://api.dock.us/v1/boards/RiHO4e0Ju3DS",
          "title": "Sales",
          "appearance": "greyExtraLight",
          "icon": "🚀",
          "description": "Sales leads"
        }
      ]
    }
  }
}