{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x99f7107e9d5a22de44a1b61b3528559efc3d4d2deafd7b25305cfa21d4dea09f",
    "signature": "0x2dfdbd843f47317b9464536b532ee197a12d2a4583ab86b3276d4d15e9bb2b7178adcab473ee001130226f447465614fe2aa5c7da01b8b81fe16853488500f1a1c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}