{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x42dfc33f276955a3d84e2ec790e1dcc5b055e09dc57c82be70f3a2a056e91153",
    "signature": "0x9bb6e2e824d32188b8d06217fa83b5a014d5dc0d1f086a7c961430e5283bcef75c6bbccb5c0318cf7cc882a1c3f3478b899781b96efd7363e5c42706d4a26f6c1c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}