{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7bf5ec658cddb5e04b44933454a2a9199115d016e1b93751b673404c12553dd4",
    "signature": "0x71dbf38f77fcd4532b1ad3dc884c3bbcef635e815c40fff0ea6d22b5c44d1484382ddfbecfe83a61c0efd231fed511d4567b2dca4c15b3153c8ba6782973c6b41c",
    "signer": "0x8012AE2aEC2a84E2E1aF053e127e1017098A8515",
    "userId": "462797167"
  }
}