{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaef42343ad163a009af14dfeb8de7c6b3167a65a696d812e00206d1b430ad802",
    "signature": "0xfdf393ad80c9c95a51ab54d323e89b627cc927de258907646e764a3f8752db310e38c34769572ad8c19886d22fc9e51e8798c88ac335356b76229438e1536aaf1b",
    "signer": "0x1E05b344e405fBE00fbB8344b72Ae1F9458B802A",
    "userId": "353199189"
  }
}