{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451786021",
    "entityType": "User",
    "nonce": "0xe4560db9b5d60769dde7362ab90a7298df2c89e6ebcc4aeb31d9163e316c115d",
    "signature": "0xd225b2770ada6b8c9d3d40bbb1908e5f8c6ca1075a4d63334e39cc3b658a82c83322dac8663d8e86490c3fa61230510ef2102774c57bf7fd930f33e99043bc311b",
    "signer": "0xC8AF9b676E09a1e7B8bCC1b53851112dC0F0B5f1",
    "userId": "364447"
  }
}