{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54799",
    "entityType": "User",
    "nonce": "0xbfd7e362bd9eec0c0f399b2befe361b9a47037a92513a8e92aea3165dadce8dd",
    "signature": "0xf8b7ceaaa18a6c3496650a94ac13c982f9ce690af8077ffc5d4603d5f0606aee65195ea283b2bd95276a2e7f354ba572c8814507495fcbbd71cf6b515fba75fb1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}