{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa309a0b141595fa0fae660e68797c26da2e64cb10db29b35ad0b460810a27059",
    "signature": "0xab7ff0b1454d08156e13ff709ccb4c97c8a3a6e85b09dccdff97def7cc9155606955aa4cb3b90743227ad7e072da8310eedf9fe0b3857800c48f34ad11b676791c",
    "signer": "0xAbf643A2637E75f29346CB35bb4DE880c0C5D408",
    "userId": "188696382"
  }
}