{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28e7cfdefbf6f8bee81db9d4daf8de6c939bf7bad8b5d3877f9ab5f10ae583bb",
    "signature": "0x7aee86e455f974cf93ccfc06cdbca578164accda31a9cf2bdb0b90dd62a8095b286b62b95aabf7155acbef08b83eac6d04c91042947a04d1b7f2428c5fcd9cff1b",
    "signer": "0x7c6596DAF365bA7D52DeCDee91b8c338510871ea",
    "userId": "833739156"
  }
}