{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6077",
    "entityType": "User",
    "nonce": "0xe0a1d3cb6a7c8ee313e888ee4dd42f315056408370a59fe4b7f7b8e719eeb428",
    "signature": "0x081d57acdc58645e6c026d2d695bb667ea20ba1e0d3166a33a06fc14fb7a6fa2512032f8e2e7b2cc1b0e0aae902175b28ecdbf4bd594394c8f59b0a5ae38a1991c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}