{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "522833287",
    "entityType": "User",
    "nonce": "0x7dfbc1a94a576bc369a26883217e0c07a913739d1f89f01f7c426189949b9901",
    "signature": "0x201fc222c09e91e9b41909e99ed655a7b6f72051cc3cee5424a0170349b6d8767d1251f984f5952cb50ede6112553d1c47280cdce324272f70257298c55b6f4e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}