curl --request POST \
  --url https://sandbox.layerfi.com/v1/businesses/{businessId}/invoices/payments/allocations/tags \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "key_values": [
    {
      "key": "department",
      "value": "sales",
      "dimension_display_name": "Department",
      "value_display_name": "Sales Department"
    }
  ],
  "transaction_ids": [
    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  ]
}
'

{
  "tags": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "key": "ExampleTagKey",
      "value": "ExampleTagValue",
      "dimension_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "definition_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "dimension_display_name": "<string>",
      "value_display_name": "<string>",
      "archived_at": "2023-11-07T05:31:56Z"
    }
  ]
}