{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x29151806edff31b11f2bff1fe57cc4214d6ac112ee622f2f51e49ef3811fa2d7",
    "signature": "0x325b4b821c5d052f37e9a75f05378d68644ebbc556fded22882cb3b270f1fb9a420d149eebcc1edd7d1ade0fc7110856bfe1dcdcf6d19e957cd2d8de9c74afe81b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}