{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc689b52f00f74c093edf7e86d44832f5da0d1f8b8ddc1537ccb6377ebab10d48",
    "signature": "0x9d9ba567bde0c866d8c0917dbc86bd0457e73872dc0668ba8b530fddae1e9abf02fb0f0b6a86de639714ee1a7c3173b62720afda31b6a11a5e432328a80127f21c",
    "signer": "0x0B6ff09889e7dE33A1619A8eAC3a9Bd13C938258",
    "userId": "101334054"
  }
}