{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xe4ff4e12c5f15b23ed29eaae835a5a418a6b50fd8ffa189a9702febdd7fd516f",
    "signature": "0x4c04a56225146172918244099d5667b46f4da4554f0c9e4e76f8b36efb3a435c1d46600813960996b985c4aeb894235c2be778782b60ddb819b07652421e1e911b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}