{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0x731a96b0f5f3cf09a8b455f944e067cb8d51c7ff4c26d48be70fdc8eee4dc5ca",
    "signature": "0xec43e480d4cdbe7b4cdd7b53280e8c7da6fc372dee6f1431544b424da457c960105d9669b516675e9c41d06f49566694dcc2f79fc4971788bba3046442cf31321c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}