{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0xd33fb8b8eba6a9655346d1daa4db667a2d7ec170ee2f0dc976b6873b0f303bf1",
    "signature": "0x8515e004d91618eee6f94519b13e886789330a8070dc6de15968bd0f765e228e0dbe3dfe8396c9a626fbeb14b8cb1ab46e8dee8d0fe84f97067e4e2316ba199e1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}