{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72789",
    "entityType": "User",
    "nonce": "0x238847791aa70ffe5b73dc4647716b3d8bd072d24d8c018ebb29bd81a8a31c2a",
    "signature": "0x3a7dd05d3517c7961f154ec266757abf67f03929ea3c83e127d1ffb79bad33f202d37cda0a5e91e18521307773305548d42aec0776fb1e49c7a5b34393ea42611c",
    "signer": "0x2b012Ef37cb9315271f0AC801DBbec07c0D4578d",
    "userId": "506789556"
  }
}