{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf69d218124b5f9ed744a6de40ae9bb7fdd2ae7dc35a4bf3a4765d057e5407ec",
    "signature": "0xb2542feb408c543d031233bc9b59f6055e817dc75ae64a5bd851011a283e54222a0e6c0577cc497f7920a2ee434dfac7933ead7c242decff21f541afdb051a901b",
    "signer": "0xBEaec7EA4EfE5d557A3Fe09cfE57d4c86472aA0c",
    "userId": "262766003"
  }
}