{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1311587",
    "entityType": "User",
    "nonce": "0x06da0645d953e1c75bddc4876e8c505edc60c97bb4d123eaa2478a162900523a",
    "signature": "0x5f744cae249f4120ab95f36feefbfe8b8f2448ca8d925991c92450f97a3d3ac505d053c78208b49efa6d3922252b79ceec51c84c118a6bc340e7684c02cce7731b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}