{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6891373fe5ff0ef28e191e83a361a66b0525b9341a7ad59dda09186da22d4000",
    "signature": "0x347d6a3c53c9f9d3b4aa6f61d3e0e3f2b5af0d02090873260c32994123ca481a5ee5ba93986abef9aba715e4a93248a8bda32e28a8ceefe0ca8f8c7f0e4c87b61b",
    "signer": "0xA73F93c985634554D9cee80917bbDA2E3Cd75173",
    "userId": "695717318"
  }
}