{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451684863",
    "entityType": "User",
    "nonce": "0x8c92c9d5e5ba2cf1b6cba2e87393cc9bead8502c9b43fe1f31a7734f8195c6fb",
    "signature": "0x011dcfbcb3a2ae8fdb3bf2e78d95418fcd71b8041177e4bf7d50a449596526a00dafca580a5a3e0bd9c1cd577e9efb93d9427bc04233d38840a6878d2e6916ed1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}