{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7edebe6ec6538aa296e9e7091a94d874309dfbb0a2a7255f4c6625eb5ad3deee",
    "signature": "0x9a042a6837777f131676ed5810930d9eb3714bf7ca47ee8b1867e662ab78ffb0272486b889b926f6d0ba2233ccf6559811c72122e71d95ba366394c141c2ced31c",
    "signer": "0xCE9ca624422b724D086Ad4665A4F57e57cf8797f",
    "userId": "39647837"
  }
}