{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd77d228ccdb14d63c26412cf789e4ade0a42314f3ed9c21b99ce094812ba460c",
    "signature": "0x5590f2cd3629caf051d5483f4a671bd26b1357db74b5b1b46cbd1f513c25124951af7354a3995fe15135a6f5e0730d9f52dbafbe63727df8b333559979f40f821b",
    "signer": "0x0E71C12c426F5C9206F778713f48B60477CA943b",
    "userId": "29088079"
  }
}