{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "469781621",
    "entityType": "User",
    "nonce": "0x169ab6b6334bcd591464704d86ba611bcfd9e5c2c5475d4b8884e5c19bd91d66",
    "signature": "0xf4d0f1e8055fe28a0a23584d29cea53c13ca33c97ee103410721176bef69aba922776aac4e5b3a9abeeac8b7674072f0207a3cef25c555c4ef60ce78d7142abf1b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}