{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad49f9dc395c39a2eaff096fd425316441ddcf8e9c09e8ea04abc99595b3fe29",
    "signature": "0xc68a99132de31b23842814f5709206d103abf715d8c27fc46efc908f6d500b001d2e1984ba130111dfa409ee2296dfbc6ebc569eb089e2749db3709e9185df3a1b",
    "signer": "0xcdC40AFF6A3606D0ec8e4Df721d01C8F35F9CC2D",
    "userId": "880959822"
  }
}