{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447853505",
    "entityType": "User",
    "nonce": "0x5d620412736910a6cbc86b9310fee3aca295bb5acd9eba7c05d4028c122c2ece",
    "signature": "0xcf162b4d9539083c855222b0123d0fc0e40bb72bf6f11dbc55547407d2ea5a5b61b90f95ed4062780fc803b01b05f23d3a48be59e4c186439bb86466accc76711b",
    "signer": "0xbA83b3D0645C0C99c76cB296B0BA81bD641DB81c",
    "userId": "951995708"
  }
}