{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x70f124920d1bcb7651704052fc33bd87980b7be98143380890a85a73d815a707",
    "signature": "0x162456976dc0fc4a2858f4c791ba60c45e9de59249ba048936f1e0184c3fa8f91d0f20da67557c25acff1a1ebf585a5127215a1f0d495e9a5943b150f524ec9f1c",
    "signer": "0x1aB2bD795ec75a0eb2F79e8cE076cf1D3F7f7Acc",
    "userId": "911290367"
  }
}