{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x416da113d1c3ff490202b15f7dace1fdef72d61974c1fbf9f8e72d929e03728b",
    "signature": "0x65866cce35114ffc86e5d714fc901262fedfe04322ca003af13eb9a30d15151c653aeb4d99ee1d4061df93ac5a3a1b6a5185110959f8d21eb87538e7c90349131b",
    "signer": "0xA3A2DF5B16fC12DDFefe2aF07D97bbBfc35924fE",
    "userId": "821198624"
  }
}