{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x1989408e6d50dbadd648e309860bd68f0ac418f05a09e9ea760e6f7ee4bd8f65",
    "signature": "0xa666dcf6d38330a958eae6133e081cb87400e9cab79528cdf5f14ecddd0b789540dcabb67ac031b88509b20e3bbb76c300f1819946c16578807dcc976074420a1b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}