{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa26cda11b00a5b38c7753ea69034400741d7f18e3447a0ec7fd2b7e427cc202",
    "signature": "0x06b6d49bea5bbc970ec7eaa0de03609e2ae8b092c100d654a776db8e9eb408b92cb08bd28afbf9542a2f80ab628c1754dcad592c6997ce449fdf9fb80d8295e81b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}