{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68456",
    "entityType": "User",
    "nonce": "0x8fb1f610e983a07c7f293f2d45e5412c76893027667b484f92a16f1227122866",
    "signature": "0x53807f5a640b2880389f6c9d4861284d80c9f29374a1863a6b6f6849663d704568e471272f726105afcb8e071cba4c6a0f540ef2c23265254a24f66c20dede561c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}