{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889180014",
    "entityType": "User",
    "nonce": "0xe3ad5213785da764f32f0304c5a086a749bb4ad8331e67df4832b43daa9c2754",
    "signature": "0x986ce651873916a9b14ada741ddc1b4d1a63b5a6782a6572ab38fa42acb0e7ae586778c0a79a8ea0e950fd7900a4fcaeb5e425524d4c8eab1aa982fdd825475f1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}