{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64866",
    "entityType": "User",
    "nonce": "0x3f296bf7e651e294359497b2dae2dacd8ee2a4e38797edbc25e6984b51ef2c58",
    "signature": "0xd01e06b574fb89798d543bb2f067e0edbaedc667aee5802d8b08fb66c6824df27c9772187084c3f54567981555ec095e953b59af19d92da7806afe2f69e306881c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}