{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261134",
    "entityType": "User",
    "nonce": "0x71ed9f68f52a52f49b4f9aca879d289fa50719067c22bb24a6a057ad734004d4",
    "signature": "0xe298cbb76c5bf390a119fe61e24a5c6a255f1d1c394df3419c837d85306b64b0510b1d203ef72bfac43fb137c53d2eedd75a76453640c811668b83a47ca8d84a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}