{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308788",
    "entityType": "User",
    "nonce": "0xe42170deca8fcb877619291e447dca4f676f24a795c5d8dfecb049ecb9c6f14c",
    "signature": "0xeffce05dc2c0b434334bfdbf5b54c161569f7592aa92f49bbcd6d115fe64425901e750a6fd24ae51aee28e9f76022492d0a6a8decc02e99f03ecfc5b57e290d11b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}