{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xe1e1fc633cd0bb223cef27b123f26e6d0337ffa4d4441c4896f0291a742bc9f9",
    "signature": "0x3bb90e302ed1c50a9a328228033b670da03635a95f87c5feb5a810d2a615b7e3386f04811b4e947f38acd79653084db998365284ec576a42ddbd29fad1c27ff31b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}