{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167501",
    "entityType": "User",
    "nonce": "0xcd4b9458349e919340237f08b74f4d9bc08eac6ea14b9364f40543b206e1a086",
    "signature": "0xf09bef582185b5d25f475db461bd92265c3d8bd6a90c5f3913f65af291355e0d7ef5fa73e2140e8a0abc61fde0689b263ff1334f3628dc4ead8dff0f4015eede1c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}