{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "471045089",
    "entityType": "User",
    "nonce": "0xa4c4cb71036168cdf5764883c94a15039991ad594a883aa02576c01c499d20dc",
    "signature": "0xa2af1938df9f311ade3f5d0aa4287aecac8cfbc5e40c6002931a821c4fe13ba668dc335e2f0a3d7c8cbc5315cac427709aa9dc1470668a04e59c73d21e4a36901b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}