{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815537464",
    "entityType": "User",
    "nonce": "0x52f9ac6c0eaee48bf32dc3a487ed0d08d7de9484d2537bc2814f9006ffa99a31",
    "signature": "0x625949ab4d757773a6d08db9665eb2645e60271121b6619130333066c69204815b79a54d81eba6cfc227f91e9c1f464c337839faf112861e62131ea769004d881c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}