{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158343",
    "entityType": "User",
    "nonce": "0x571dc3a475d378bb3fdff9bfbbb7c94cf8f1fe7c7c0b1be2b9509987423d3a9b",
    "signature": "0x82222a329f185f5a02e5802b73c317262cbcfec011bc870c9c7c6839488871ea6710a89d7ffbef0a784554af4eda65ce4605a6e004b37a6bef90ec5146be211b1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}