{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13589021",
    "entityType": "User",
    "nonce": "0xe51bad51fb19429dc8f2974f8bf5f4fb834b02f9eb3470af3725c449dc1cd324",
    "signature": "0xb45085c91109f9139448d248e43e3c23c16cbbe2dfa8610244e15dd03298416d333d539802e2a453cc7a281e6e0d9e795729923935f2d13ee75188ecfa20daf81c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}