{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeb80ccccf5e7e3e535616994154815e0d2ea3f45b31624c03b7a0b5cf95c4ecf",
    "signature": "0xd623506e80d12daddc7ac33a44060d7f605bc10a01c027d4564a15f23e79835c2b061cac6bfe1fe9ea5d49f3ffe33696dd056f222c903825c7f0d818337e1ea01c",
    "signer": "0x312eb8BC6BbB06B38DeD4B2Fa642C01E3651E7e8",
    "userId": "822131996"
  }
}