{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2d1493b796350ebd43733d21ac7a3f50a75415f48f70c6067c6f621efd953522",
    "signature": "0x6e5a8252b5b9770969f6007961165885933c57692720ba808af0f53e01e0bd77752846fba3ea3ccf833d9af639372aa33195d47fbda29887598e0a2207f718271b",
    "signer": "0x11D455388e2C49b5996d93F83aEF88A97008c68d",
    "userId": "366541457"
  }
}