{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "575269234",
    "entityType": "User",
    "nonce": "0x41785edef1f92e1743959630c1ed5a6feb6bf79b404db283d8a080f39df045b3",
    "signature": "0x077d62b2be01ca5d8d2813aaa9b9b7b77d42fdfcd3fa1f3f40a517510c96543f475fa466a1911998924470043e9626c804cbfefade8976863bf5d13d4da5be591c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}