{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5315",
    "entityType": "User",
    "nonce": "0x8b445a4feae950b74425034aa83eb76542ecfccc12f1973accb52f1e1c940e86",
    "signature": "0xffc62164139bd3c005acced8d2b09bd140a4e1f30760736cadffa4c86c764f1e2f97b432cf064029fd9feed235f57bde7188a218708e3d4216e6ef21497991e01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}