{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166187",
    "entityType": "User",
    "nonce": "0x18d297d0de21749eb5b4fdc9e3fcebe0ac6a2f2b7447c91721bb9e95cb370a3f",
    "signature": "0x30de633ebe2702ad32529314af075a660134d9267952d73c6ab889e8001bf05b519e50889551b32a621c8b8d7bb3cc8abebccf603f960cfd79a1e5712bb3e1731b",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}