{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29907",
    "entityType": "User",
    "nonce": "0xa312a2d41a4ed0dd35acf3b58b978b45f6a00eb0f054d9454207c9b8927a6ab9",
    "signature": "0xbb56be177dbd8238082b8711c329dded2e0c22e31c44f20b657060fda91e15c9510d56a35a20cb87b5d2f4115576360f3daab2e0e0f13df9b4fa809960b883e71b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}