{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105773",
    "entityType": "User",
    "nonce": "0x4d1cd00b6e70924f8289e325d76fd8a6f5f1b74e7842127a92a1da01d79399eb",
    "signature": "0x4d322395f7d266b0fb6a95f63121da10f62d5e7e499dee2a1df8e8e1a7718d06395771ad891b19d799cd016bcc14ae6a3c85444927cfd67a55700efd0bd501e71b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}