{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "91942408",
    "entityType": "User",
    "nonce": "0x18cc9cc5759896efc714feea6f2309ba13835619f36c5764bbd61c568b7f5b53",
    "signature": "0x0f12ed5ecb50f1712bbb3c4bd25a25b57edf55b3cecbd7c659f70bbfad863f2f1a9d8f8386f70eebd6e91f1501ee1d0148ac81e34485229f4b9e2bb2f9ed64721c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}