{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "443825",
    "entityType": "User",
    "nonce": "0x4e277314f604cbc454d890ee77a8463ea3add429b36ee9c2197ddcdb8a07143c",
    "signature": "0x331abfaf41a5d96564e6941585a2b0ad22c85e7509f10a2a43bd01628ec074ec5504616bb870e689b9108c75a717f3f64b30f949b9dae10ecdcaaa473401a3db1b",
    "signer": "0x1c809DCFe6C44436876fA965Fe7ffdF1385D1b96",
    "userId": "860088692"
  }
}