{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152331",
    "entityType": "User",
    "nonce": "0x53e1592e17739f6e5e44c4618a67ba4514532828fc517c7202195e23b81fbb2f",
    "signature": "0x5f55136d2ac156b8a24e733afd416d2d7b86e95b954cbfeb84925cd01e79ef8301f496569010327e314e994a9305154826467fcb65076f63e4e15f4dffe1ebc71c",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}