{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x5a6df6865cbd19906b05e32ddb4d71808e4a70eddaf4d1ec550096602e0f98d6",
    "signature": "0x1f91cd2a1b32c9ad1fe3f8d7e8ce3f39abfc12eb6f37423f8eefbee3db49568200d94e3bde3c8fb16ff30f1ad4f8cd03add48da59c966c2341dd6d30a7a36f091b",
    "signer": "0x5d63ad28f1a5D0686355e2D305c9b88597D5E18C",
    "userId": "834732195"
  }
}