{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7445338d3b61a705135a420c091ecef5b8858a8e8e10d8a4a6577dc168182db9",
    "signature": "0xd0def2d7f9a2ff61bc5158b74752337bc22c1de8a6a7016b08427e9454b3a0797e055cc844e920eda01d0592a844c0df1fce69ddd5c419a23086439aa564bbcc1c",
    "signer": "0xF02E13989E78713ba4D3bFC8e6823CAD550641f4",
    "userId": "893169404"
  }
}