{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x96aa4d65ab185838dcf323df28f73df7e2b07d82254f81ad0d5c53d33a7653ad",
    "signature": "0xad00e0818d5ed0f6bfd9afe73f2ff46542778bcbc188f9db64e780a390c4c84f040ccfec11509ff57e5f8419109b0e6cc73bcc98641196fb43b2138655e5d2081c",
    "signer": "0x3a61f31470389701f20db4161B652272f6bFd700",
    "userId": "287135269"
  }
}