{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87134",
    "entityType": "User",
    "nonce": "0x7fd002c67a9b2b7ee265a30f637d798c0bef1e8b12f48e454c21622459846994",
    "signature": "0xabecef4ec024f29a412b650a40ac739c58b25b15ef17215c4b063725625f994917a8c6367516425233defc706e0078b9cdaa38b7a9f638a30041129e7cfa32d41b",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}