{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "872142418",
    "entityType": "User",
    "nonce": "0x1131e210d42476aaa4feb1f5157f588ba2cd42bb36a00e0a05cf5b2e912f8688",
    "signature": "0xba38e29552e75d499c8356ecef6a72d6f90322856d0ee265899aed7ee7ef83a9381429fea20ca9b6b8be4faa512ddcc6a65da761ff42256d5f36d2ab5179dd5d1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}