{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0x2e9f83d58c940763227096633ae3be1f675d5fb5b501d52bcdc7ad323423011c",
    "signature": "0x147472613cccdcf29d9e74d2107ed12bc48d55c8f85957d8bd55bfdb17e1653776d3170f05af56a3f4f68a87014b53092379294df7d3e1522c688a7f176c0bfa1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}