{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xef29dc048261fdb81313fa1af14a690c970838f5098ae5539f8a1e382a905e3b",
    "signature": "0xcb960e36eadae2ea9394fa3f34b659d7c6cff707a7bb227e0187dbd368870b2e16415bbc65b5f3613095ae022f7aedae37c58f801d061c7bb5fb13f3d49bb7b91c",
    "signer": "0xd20b19CE82F9bfB4dcc723d21e6Cd8b2ff82C4C8",
    "userId": "925319368"
  }
}