{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x8fc3eec501905bc6ced471bac8a9d1287e6894e9bd72c0691b222740a4555bcd",
    "signature": "0x629770a91ebd7cf0ee43d341221c8faf1caaef9b1e4a885f4484e38ba7c759bc32e4e3a554ce7433824042038af72dde36d475a9b8d04016109323c559301f0f1c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}