{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6068e818ff79cc09c93a6487e6cd19ddf5173de108705c3a6317069735e29c4",
    "signature": "0x7434cc73c13684e00db222297265a51a303bf1d127e70da6bc6466f61a22a6105c63520bb067bf03e5a99f8e0a54a96e69e563aae1db968cad32306117d5bd031b",
    "signer": "0x3Fb3207A8557F9337Eb0c99d7b8645A199aB16bF",
    "userId": "992315524"
  }
}