{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4ec6be4a93ccd69e260f27a56fd3913e0fb073d0f9c8b07ece8c47deae2404c",
    "signature": "0x9465964f7796c61453c7501f6a2b0062555f93945b7de3016e3750f974bb3d613041d2318d5f0aca975c1c671d25bbda5b11dd828467e157fb87a07a41477abb1b",
    "signer": "0x08841C70270Da423963e1F5Ed5F457A3Ead06D53",
    "userId": "355266761"
  }
}