{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x72bd103f4655a41f2d70f6c9b291a4345606a46473f69c1c8a7a0284c8b877fb",
    "signature": "0x647b68233fd69b99cbb6070b7e4dce3a4001b1798d4e960d71bf97450a51f0ab5e19be658835e99ddda473743aa767b445ce85a7c5e21b4c836b91c569ebf1511c",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}