{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897872507",
    "entityType": "User",
    "nonce": "0xedec2ea0da356abfa10fde347b4400e4df24e52a7b59fb2efedb2fc60ff8c4aa",
    "signature": "0x4cd75cea31204f7659bb99f8c78f227162ba9aed29f21c2780eccecba46bad3960633eb4a2799722a0cd34f27510b18a0a6c1e3d9c813674268a919984128ab41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}