{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc28c861c896b48b3e59df7c0d9b09831d3860211d30ed14c7086fe7ceec80dfa",
    "signature": "0xb39f7b017b3a6ee9d7dd8cb5c4a7c9477cea0fe79be0228e202eb0044421673a3eb32cc846b3b426273ae2dfa14908112f339ecd8e2c6f2f0e7666afde9d81261c",
    "signer": "0xBaeD8b8D095d2db7dd714B6D560475d394801486",
    "userId": "50628254"
  }
}