{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3829",
    "entityType": "User",
    "nonce": "0x389d9047771a0e284e879bb2da5dab7fa38cd111097b87a8f09892e767d46207",
    "signature": "0xff15bdf6e14ccb0e93278fe156a3f2cfd16c9a9b4ed23fb2e1df7b36f9d651c914327d22e1b7e5a300ced00a0d83c7583ab67256252c2f879a2ad829807f79121c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}