{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x8341457a1e1785eebfbf4718cc86c90ffbad4a5f2b6d7f61c242de2c7da147cc",
    "signature": "0x87214bba30762076dacb562b5d4c82ee0f429e79267d01868fa843f05af69e3d3c4834adeb62e002a8a596a82618d431f0fb77ef8bc46ff52edd9ade24cbe1041c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}