{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "98250",
    "entityType": "User",
    "nonce": "0xcd4956531aeb71de7a2b3c04d1be5a2d133926ddace504c11d9e8feb01adbc00",
    "signature": "0x75005a824277dd7fb64c892d1db3d5f71d2615aa556e615bf60b1167946164f06ebe0b5c3c66fa74049ad25a2ff64dd01fa2709b75877526c04ddb030c3e47591c",
    "signer": "0x3B15C1247a5CC34F846b88f0E04B262f39b05C1e",
    "userId": "563285188"
  }
}