{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x37015c870b1823d52a4db80a3f41b00b90362adb3c7f0f97c50331fd424c7690",
    "signature": "0x35ca5cf6713386d823a8b595cac15769f7c3bfab0cda5fcfbeb0ba8e071e0abe3337015f086613c8eaa8e835679912d0101652ad05e5d80aeb5d91b1ff7cbb651b",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}