{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1429398",
    "entityType": "User",
    "nonce": "0x3e2f244fa8acedac6b1ce804c00d1558044a9c2580273756e6064b00ff9eebbd",
    "signature": "0x74fc6c043b2cb138dbc789c9031b8da12c0a4204b175af0bf9c73f061b591f7d7c529b09798d79d3f8f566dd91818d5879e6c427297e51b0eff58625c62c71db1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}