{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xcbe2d8654aa192ae9ca92d84ca022f758e6cecf70bf1442c595f58d17dcd8f04",
    "signature": "0xf019b33d9e810b84e23ef0f107fc2d2f76a565f04f5fb8f48cdf956d7f769aac19b0ee5e88506e526305a6772170ff6cb325b7fa588c09ea8ecaaa15ace9669d1c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}