{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x1d352816cb60cc5ea77c0179af4d6c63caa44dabffbebe46842ed0738d57249b",
    "signature": "0xf94face4719740c0eb3aa10feb2aa5617f635abdd61af9cbc0785029b947309e28186200c89730158523e41e8d92d91e2cbba8226bd4664fb27bc420e0d61d461c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}