{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c8f7638c82b556757ade6ed7040e16132141050b31e54ba960f62d186dbe656",
    "signature": "0x4308613b0267c8c078c2319142cfb567161b47be439e3b046afcb37ffddf63107c5a376611b0e440e4dcc69424ec904cf299874e21130a8dc67989f24e5a734e1c",
    "signer": "0xd3a35225FdbC2142b630Cd9149Aa7E08d55D7259",
    "userId": "779464724"
  }
}