{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x701e422dd0a36959c7564f2baabd8214a53ee6ddaa42c989b733704843d5ee18",
    "signature": "0x96437105c906af1e41215a0d12d7883e2e08615e24f563dbe5f93b02d31d6fb07fc562e4a94153612d023060205f4db46acced2a3f4bbb2420bd9ba7df6c12571c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}