{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x492c69ecd188f46af43a55631b934f49c01c89d7c659842d90a197415dfb460c",
    "signature": "0x6a08b44add648d60254e36ee32c30e8c3d7623fdfb94918d6a5b1abdefe0baf73ff9d7c9003e50c88648268d6f4de9b81cc480c2f1dc382860f4d2acb921e4cd1c",
    "signer": "0x8e6A86c6783FE9401aC51E281FdF8Ba2E722d0b5",
    "userId": "816155109"
  }
}