{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335589",
    "entityType": "User",
    "nonce": "0xe47e6890c2f47af12b887501e2afe568daf322ae08d82f28e2bf17b0c8e87ba8",
    "signature": "0xca4f6ff4cc73051a6dedf4875f6e44a370d6fd80c2851dee4a35425b7b97f6513780d572c130b8bbc88f21f5c253087e0eda374e081604c9729c8aec21fd748d1c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}