{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68a77d7cc80751c7d1fc9af30ff6d740e721f9684ca5894d0132f17b388c756b",
    "signature": "0xf567fc5c293fc57421060494ea53aa4795b6318acf4eaf375477e69e211ba6a96234fbd365ac4caf3152b9f6d99c7374363e5a0c741c27886c8e037efdf0f06e1c",
    "signer": "0xA6D1EAD37Fa2365cf9B7325dfe4fDD47e071dE84",
    "userId": "294642511"
  }
}