{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x098360e33247a1aea56a89100268c82bd6885bbbac59510273611d90b9919989",
    "signature": "0x304234401d09a0ac84b00e24e650073abda6650ed1f81b6f9187306e6e4a628b19e4d4571e40c501fa8b213222006b98ad28faa85c988ce881a1c299a43571831c",
    "signer": "0x4998e5Ae30a5157C617ba9b6BD651130a779a4E2",
    "userId": "914906988"
  }
}