{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258307",
    "entityType": "User",
    "nonce": "0x31e24276c8313be5b8806f9aa88523aefc23fba095ecf18cd2fcab0dd5cf1458",
    "signature": "0x274742f98c6c9e0bf990b31ebd38f0e2fab927669322e9dbc467756c019eb7c81e72632ee959ded9df4a6ec610d1a9a1d2c8688a1faf61e97a8188dcff48e6f31b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}