{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375653683",
    "entityType": "User",
    "nonce": "0xdd25d57d424cbdac4e492dbfce7eece5092dd90419c5e90aa7a53819fe2f85ea",
    "signature": "0x0213748a1962a1758a62d8d3ca61c9020dbbfe588e5f731bde095feb4c1fe4fb29e5cd5b23ba54fd156d4a0b387900acff137ae9994f39e831b7451f961a4d751b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}