{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849724265",
    "entityType": "User",
    "nonce": "0x18f649a31dc08aec957e4859a10b4e0dbb9a96d5347b5215db5508284ffd99a5",
    "signature": "0x376d3c1a475813609fa57bd78b090c0e46b732f0d66f78ff8458ceebebdd1a2b5268eb8115031229cb62f14cce5fe44e04f003024c907ad11a4b163b3e7125eb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}