{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x91251e09d4c7ef574a675cfb8127f489061eafb780c7b371c5f0602b7984f68e",
    "signature": "0xa54319bea520a1b9c3998e58830341bd9ea41a0213399a1e45f89b9208a142b17d814d5b23f056e37a1752fc23a03713486d9f13a383717027499e8690be7f701c",
    "signer": "0xEfbE02d33C2338F0f1Baab699176B8601c34474f",
    "userId": "229238249"
  }
}