{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf5bd041dfc45d5c0e401be047eaf544a65287d553f4b18ae030fced5a7c01e3e",
    "signature": "0xe550989058fecec9cb8b08b7e619a3abb2d3b865314f7a0f63925c8e81ed66464909a33daaf5996c5bd65c50427448d2fd89b1626e1061d082ac3a5d224060b01c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}