{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776439",
    "entityType": "User",
    "nonce": "0x3c0a386e693ccbef3e41e59ecfad49e3acb1a78ebb609a1a740d9607c7c6d963",
    "signature": "0x6bd99fbb5af89ede7c78b42fa72af87952c700477b873c0cfd3f9fde06367c1b6e18063e03ed320f4b8ffdb9b1a3ebbdc275ee70dffc583e4bdf8695ebfc155e1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}