{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40531",
    "entityType": "User",
    "nonce": "0x77d182f2ed9203c5f8f57a3afc8f45e6cf82390b8775c9701a8ec266e7a2f5b3",
    "signature": "0x8193707f2dfaaa3efcf5407a47f2f08d04b634445346e2d5e0dfe9a58087b8527d0e59681580d42ef687b0abaf9cc3c4563b37f9e33ab871847d1ffab0ee68a71b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}