{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x54ce00fdf9c4bb29272b2f3d6a4c078712c3597a7c074acfcbc76ea2a84802c9",
    "signature": "0x1a8ce85477432150a9b0fc1ad00004d3c03f6b4932e0dfeba7b68f6876fc9e327efbbed977a2af720995a2eb28d3ebc2e2e2fd9eb795de99ebef336413ee2dbd1b",
    "signer": "0x30c38c1c87bEE306cAd1fd09ceB16eB3b2e41227",
    "userId": "184139297"
  }
}