{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "739472267",
    "entityType": "User",
    "nonce": "0x761349cec3443a3dcd42578e1dd3c9d5d8b4f101f5748120cd1ce2d32e477eec",
    "signature": "0x3f84f8e3830637aa27369edca00267e3bd465b8d3045145524c187c448def8491ebf54efd67d7b5043264d3c2d3ec55387abb56d9a5b73fafe4502d64dc01d111b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}