{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3da70c2ba5f55d6fff6b306596a656a5b2e8602868a7067fd2b3d284f2f5c9e2",
    "signature": "0x12140cb467cdfb739d0f85e46c3037ebacab8013b77402fb57f710e7d8c39f4d1ce922008424e3f35f1a248019b8b179c379f30af7e6a6074205c520e949f9131b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}