{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "811550498",
    "entityType": "User",
    "nonce": "0x0577629bda58746fe236d9d5f3463b99f6378e8a043f6b9acfd8da5b7aea1538",
    "signature": "0x08d58f9f51c1eeaffb32a4972337777e0d50561ffee9af6743374174ab366cd335d18cd4e729af223f9cadaa29c64e7dbc86d25663c58eda86cc0459d8264e6a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}