{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339273",
    "entityType": "User",
    "nonce": "0x25b9abc93afedbb1575619537b8767157a05b1113aa9704704af2947abe96662",
    "signature": "0x867d1f546bf5a7372e357f6b4bca1b472515fca09a52a5af8c31e1cf3ec056023a70ffba56e7bffd67ed5ddd8f62ca5f59d96ddee7cb1e03b08712ab33d97a351c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}