{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x2864e1590de381e6dcc80a6531a837f6c1499fba36f59c82ea9bd2f9297f0457",
    "signature": "0x881a1509d09cca73b2999ae770ecc652fc73d3804c744451cee7dc309cadd7c55f79eea4079385935b8080aeeaea767b1a6f96dd5a0dfa683929a8f8dad7541e1b",
    "signer": "0xcb5D87789Be7Fe51506A9D53b24d9D9dF14BcbC5",
    "userId": "947956805"
  }
}