{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "705141",
    "entityType": "User",
    "nonce": "0x27e73bc3e6744e918c773a5bd1661fe98ba21fa2711ba86a72d271b963be3831",
    "signature": "0x80904e39ec333e5b7938bb681da7b2d25ad1bfd20693b03df7e71d8d27e85a833fbf56e46c158b5876c9de4967f7f8cf6324a0d9d98fce26ecbd4ad78cc657501b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}