{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "461639812",
    "entityType": "User",
    "nonce": "0xd559bdf84242d1eb13a1669b39e181e7665f75862144bcddced88c306ab4bdea",
    "signature": "0x69928c29735f182f9574c61fd8c2f04de6ab7bcb4b08aa12874241f796a3e59f5df76b016aadf85f61796c7bf270dfff72d0fe0ee17a6a8759f6c02c666dbc3a1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}