{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3184454f32f9e3b7cfe5a0a66f80a81c688fcf75635a7771f133344a9af008bc",
    "signature": "0x6fa1ec1d5a7caf3cdc31d3f9cec1aba2ca42f7f4341ceba0ff7a5f4e627dc57747a204c74af12468e737d1a222757e979aaf2017b0d15fbb3d8dc39bbe533c261c",
    "signer": "0x718D4E111f8aB6183e876AbB1496d22ba8Deeae9",
    "userId": "740552768"
  }
}