{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x7bf6c6529ada470ed9206276e8099af3302517adba23d3ac74a4d9d3ab1bb6af",
    "signature": "0x7143ae66af412bbf5e8c81b37da1dbbfe258adb9b139720e45b0b20a74a3742333c374d0b47adf1896eeea78d68dd04b7834a4893a75d811d953e4bd90ff17771b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}