{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xa3af1f7454caf8d5bc0cfdb83e299c890484cadbe01d76a6b4382d5898696815",
    "signature": "0x406926c915a3486fcb31c7c6b618e9a047533a87c8a99bdc3609e4afc05077e521fbfebddfea6cea3e0c9fb4be6fbaa1d594610e63d07c4fe3fbbbc343082e661b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}