{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283329846",
    "entityType": "User",
    "nonce": "0x1816215c2d2bc5bc5613a336248508d09dd426397d819c95f37cf8651469963a",
    "signature": "0x4917edbc182a2575023f9369a816f66524778af9fd7e5d76dbf8ca0f4671d1b91ea6ef3432a3eae7d8d397473b41bbddf6ea2ab78a6bcf6e2a2e1454eced38c91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}