{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10813",
    "entityType": "User",
    "nonce": "0x3a39112c039edb8a4a7ee803406a28c8da195a139cad95f419078122dad16cbd",
    "signature": "0xf81d16162f0a397614c20fe7215b5c6d930fe75ac619f2167f96f56e7396eef934f9b1971d74f499864adbea7e4bf6cc46c3500c5d8bfadec1237aa7e84be9491c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}