{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987974477",
    "entityType": "User",
    "nonce": "0x82045e7c99a01eea3191161af23bc33c14629809452cc8f81f239689497c0380",
    "signature": "0x86d05ec9a92d2fb3e50909a9504e4bd8d14ad691a526aaff9708ea4d45face92520ae6e40154efa5e2bc959085e0792d7f7ae1148ed741287137dc05d8273cd71b",
    "signer": "0x424aA4BfD3Afb363d866c626d0583C77F9781cde",
    "userId": "192471902"
  }
}