{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73566",
    "entityType": "User",
    "nonce": "0x8f3dc1bc233489023401625d25235c7912d5242fd202d8edeb6eb5c77a7c7140",
    "signature": "0xe09ad26f0eaef630da82b7bf0391df9ac703738ba368b26899a93b3aaa4e7fe322746f6e5c75dcc7ec0c7b64b812c1b006a2bb22718e702c95deed8157fb3bef1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}