{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1698340",
    "entityType": "User",
    "nonce": "0xdb1e4f05f203b4abaf5ff8af7b9bd60dd3cd621d1a348ce928757f288dfd069d",
    "signature": "0x02d2dfd14093948d4a6d89ea581a25842225106aa5612dcc2758dee90b52f8892fb7163ed91bd516fd2afd18e1adcd6b8c1290a91d540696e4553a193a26aa7f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}