{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16411799",
    "entityType": "User",
    "nonce": "0x461fae970c24e9c6fa37979ac85ad0e774bcebdc0d8d7e2a65dadf11a4712176",
    "signature": "0x329c7315a9f2fc7a1acc2872050069fffce660b828bbb94b5e96ee6fd7ff8fbd4e139fd7c777ea47b904e2e97cb4dd9cda9a920f86b2ac337cff42303d01ae971b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}