{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201891",
    "entityType": "User",
    "nonce": "0xc6fa4b1468fff88202974f5f425204d7fc36110f127f6a3e8128bfdb7f66697b",
    "signature": "0x28ee6d9b0a25d16066dbe69056219e81b65fe85fd47777bd114a48a2814931d1772e3c039bf16b6ccf4860d418fb30b4098c3f644c26f913f68f67815d07c7461b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}