{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190891",
    "entityType": "User",
    "nonce": "0x33aa31dc61b74da110a0fdb7a3b691fb9982984c516cf67436437c80095b6e9a",
    "signature": "0x63cd63a0333354d8ca20e983eae8d6c72cea60e5c1334c06707a94b4b0db4fdc5d756d1a20bcdb77a630da95831d4ed56775dc9bae7d0bb4a89c7601ab8586861b",
    "signer": "0x0D6Fe979092018A5781aE6E1aB0095528543901c",
    "userId": "32331669"
  }
}