{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352587",
    "entityType": "User",
    "nonce": "0x28a964c65a8b8315d308cd6d7e19fc6b597ad0476039d2753eca607c3fc9dc91",
    "signature": "0x5cbe12567e2d2621716f82af2bd5a521a49ad8481fe3c3d563611dc6e4a7bf0f66a0979b0f754daf6af570e5e0d5c556206cb02ad293d8919125b816f1f6adb81c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}