{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x0746c324e10d410574870e9b6bc358b1c157472248a697bc9e23b1f6ec801bb8",
    "signature": "0xd12e5a8fe5c2dc20633883e035736a0a402aacbbedbccb4493d4f2c6844bb96659e1890f3761a958df0f02375a7468c356078a28e6033e19ae0a9cabc628544f1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}