{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xe74ca6c38f76b9c1a01e0f602bcb0afd9f9dff3a05572b5f19a3457f59b49fb9",
    "signature": "0x007d93d8917ba121624fc3af3b0cbcd10adbbae28f11f0d42d24c48a40a7e68e787aa8491e405221c5fa2d18373f8a41c7db3a421330695820fb115645cc56341c",
    "signer": "0xCf3E6F9F4BF41C4e355E01484A92aaf61B6dd8a3",
    "userId": "149919577"
  }
}