{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534",
    "entityType": "User",
    "nonce": "0xac3dc0b8172949675a34c13aea29d153911fb08382c7c9cfcd25c6127b1eaa40",
    "signature": "0xfad3eab6c8bc5320b86181624948a794e59e6dc0753480963701a6df6b344612519ea0ad43368a1ec4a6b9876e9e816f15fe085db1377e556e80bc5ba63afd0a1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}