{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107971",
    "entityType": "User",
    "nonce": "0x948e52cae57dbff0a709f854b39a23c35d02c47b9ca73eb801818fd194bc0674",
    "signature": "0xf4fb552aeb3eb0490e4525960d0cce5849183154ea9131739f95544a67511ca5096bfa5ccb446d330ef5ea81f01132f0c65dfdc271629c42ea7b99041ee56ab31c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}