{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x06d454109ff2e91af9012e674856d88b35bfaaca567513a5eac6d07bc1063e53",
    "signature": "0xf11764d43682da44211fa54f91cbf435905f943b73da9c749bb7fea3893da1aa5bccaa5b756bbb4650b2b9f3516912b6109630e7373b2e687457695edec0c0741b",
    "signer": "0x27fe505A105a761994196F32091F5672586FD0cF",
    "userId": "537528609"
  }
}