{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeec6600c481f7d5c685571ebf6e0c9e6a49140c4a32278c6c50c172565438f74",
    "signature": "0x59df77bac304a2200c1e4b4a71c0a12b029be9d9d786951aefed2e6a9c68648971640509495bcb16749dc2f11c70b240656f1761ac4d2c8c407d7db64b26c0d91c",
    "signer": "0x6C276e55158027C6583998cc21C3a0D02fB68C7F",
    "userId": "279485188"
  }
}