{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11521528e166f732366b038bdc2e50f1ffea52315a31f104323ef5836566a87e",
    "signature": "0x21e3f8bb712a059916abc5d7a4c0fa35f970798902c8d142fb94601849ca168232c9f49878270ad59e0df520a4cee8a68d74560fe58ec41b57a494c34801805e1b",
    "signer": "0xD1aB8310E20246B42da1D22eE9c30Bbbcf57aD38",
    "userId": "185794447"
  }
}