{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "841756759",
    "entityType": "User",
    "nonce": "0x7c8b8f0622d6f7c0280c219e63751536cd479ab6810c102dfa777f6fea7c4f61",
    "signature": "0x43207c8ea14b579ce0e3c0dee0e55f8b81da6bd3f52635db2b360256cbdb12890b4e4aaed8e737318eee669ebd2e66016adb185c45a8ffcc610529000e88fd601c",
    "signer": "0x14A55CAAD52a18f76025A94865ce06ED8A0Ea2cC",
    "userId": "653598798"
  }
}