{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x09908ac6eddf74880f128be78a89205cc5ff09a2b893dbefee500634d4376b5a",
    "signature": "0x8b72de6b9124444d8b3046eff03903adecbda93f65240bf425fb14544212afe264b91d8885735d151709134c24c242b69294e267f02370ff614a676256e417ff1c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}