{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200945",
    "entityType": "User",
    "nonce": "0x0a5ba3105fe3b7c93988cecfad3150ab86fe67d24533fadcde25323f36b51e88",
    "signature": "0x951ae0631ab20b747ff5650c36812394e9f51c452475297ca3c4cfba5a0647101317eca9ac471f529d1ae1b0b73f17636c393eb3279f67ed121af7e9eb531cc81b",
    "signer": "0x436637bD14cdBAb950deA5e8ab694896216708Ad",
    "userId": "234122192"
  }
}