{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12728",
    "entityType": "User",
    "nonce": "0x38d0f5f2055ea2242076a3dd6a81f1b2e599a9a3499b154718b14e02f62d0e1c",
    "signature": "0xf9d0ec858eb914634cf56f6b4d62a58682a41854403a05fc90667acbf736d72111889aa232724411aa1b075fba02a3ab1126fc158559c400768564d906a3e6011c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}