{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3ce6575c02256e4b418e426f07dc902caeff26623f3f36c54ef9318b0dfe772",
    "signature": "0xba3985af261fa83844da292aff79a35bd937e31b23bd41872bb21db5298916b2000b7c75bc2ece86848194c5988f7bfc5b225a2661c76d8cd7c09cc7299635c61c",
    "signer": "0xce0095E8E9Bc88bd9bDaB88670ab4f8AAD4457Bc",
    "userId": "511852300"
  }
}