{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708153",
    "entityType": "User",
    "nonce": "0xda486aa2d72d25fca0a06924388801b276708d735222ed0e804906a43271299c",
    "signature": "0xde8ef59247ab3c242a073442670ce55433b3d91452025da55bd910c16a2ca24229af1d51cb63d038da7efacd60c6a18d2f9ba4a2c382eb352e5ad750416df1c41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}