{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x256f604f1ccd5f6cddba95fdc92abe25952d152618c13b2cac387ecd5bff8b29",
    "signature": "0xe63f40bb0fddb20190ec44e0c2b790c56058a365ebed3acb760d2eaa17bd5c1b14283c764e33ae1ff4efd9101a26870c7adf157c850730c27c92819392ba81ef1b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}