{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "909227630",
    "entityType": "User",
    "nonce": "0x94c8efe223caf4f081058a657c3d78c11d6aae9d7d11c7739f0c695bb909ca31",
    "signature": "0x28db6b3285a4cb1d781cd8e5bf08c5e8dcad3f05787df1cebbbf477071e6e4f45b48ce63457059516a34386b5642f48ad96d1b98c4e3c3164a14d9b067a624db1c",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}