{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcdf3de6397d95706dc4bcc4de8a2d54052f448576707eb6cc26f7eeba690d13c",
    "signature": "0xba2f82c0ef8402901a913ca72b6e67a2b178a8ec72168991f1847cb176c4fcac24d3eb164ebb4291001e63f4feea5482236675a6181db4584cc22cf7cb20bbb51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}