{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x889f532c731b468f3b3e93d45b1585d558e281e3e0c4688a0dabd7597a1b0075",
    "signature": "0x33b0ea3abc16148bf3666ca0ff7692804e49d3f7a3937060b9302de7c1485b9e3d000d2a0e039553a4971704e0721fdc26e0d1269a34308440dd0bd8d7bd1f0a1c",
    "signer": "0xbA83b3D0645C0C99c76cB296B0BA81bD641DB81c",
    "userId": "951995708"
  }
}